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"Feel the vibe here, that's what I love," said Harry Sung as he stood in the middle of a buzzing Apple Fifth Ave flagship store. Moments earlier, Sung picked up the first burgundy iPhone 18 Pro Max of the day after being ushered into the glass edifice by none other than new Apple CEO John Ternus.

It was a big day for Sung, who scored his second year in a row as the first Apple customer on iPhone launch day, and an even bigger day for Ternus, who was hosting his first iPhone launch store event as CEO.

It's been a whirlwind few weeks for Ternus, who officially took over for former CEO Tim Cook (new Executive Chairman) on September 1 and, a week later, was on stage unveiling the iPhone 18 Pro line, new AirPods, new Apple Watches, and the exciting foldable iPhone Duo.

On this day, that flexi-phone was nowhere in sight. Even so, the atmosphere was electric, and it felt, to those of us who've been attending iPhone store launch events for almost 20 years, like the old days.

When I caught up with Ternus inside the store, he told me the day was "exciting," and I could tell he was still a little amped up from the store opening ceremony.

At precisely 8am ET, Ternus appeared behind the frosted glass doors of Apple's Fifth Avenue flagship store and then swung open the doors. He stood for a time, waving to a cheering crowd, behind which was a small cluster of protesters shouting about, among other things, iPhone manufacturing working conditions. As the groundswell of excitement grew around Ternus, the protesters seemed to lose steam.

Ternus then turned to the long line of iPhone customers waiting outside the store, many of whom had pre-ordered the phone last week, and started greeting them. First up was Sung.

In his arm was a binder full of cards denoting the 120 Apple Stores he'd visited around the world. Sung later told me he had met Ternus once before at another product launch at Apple's "100th store" where he'd had Ternus sign the book. The inside cover also featured more than half a dozen other Apple executives' signatures (This is not surprising. In another part of the store, I witnessed Apple head of Retail Deirdre O'Brien signing someone's MacBook.)

Ternus posed with Sung outside the store and then turned his attention to the next customer.

After collecting his iPhone 18 Pro Max, Sung briefly appeared outside the store again and held his purchase aloft. The crowd cheered again.

Later, when I asked Sung, 21, how he secured his pole position, he told me that first he pre-ordered his burgundy 256GB iPhone 18 Pro Max online (he never leases and always buys), and then he arrived at the store yesterday at 8:30pm ET — and waited.

I asked Sung, who is a native of China but is currently living in New Jersey and attending university, if he's ever owned an Android. He shook his head and then told me his first iPhone was the iPhone 15.

Why, though, does Sung visit all these stores, and why was he here right now? Sung looked at me like I had lobsters dancing on my head. "I love Apple," he told me, as if nothing could be more obvious.

In the midst of hype for Apple’s new A20 Pro chipset and slick foldable software, the company’s durability department is quietly having a moment.

Its Ceramic Shield 2 display glass — first introduced on the iPhone 17 line and returning this year on the iPhone 18 Pro — is earning plaudits for delivering on the promise of 3x better scratch resistance 12 months on from its release, while the iPhone Duo is set to arrive next month with a host of impressive durability credentials (including, notably, a Galaxy Z Fold 8-beating IP68 resistance rating).

But while features like ingress protection and corrosion resistance aren’t the sexiest topics of discussion at Apple Park, they are some of the most important for ensuring Apple’s products stand the test of time — and Tom Marieb, the company’s new Vice President of Hardware Engineering (a role formerly occupied by CEO John Ternus), knows that better than most.

I had the chance to quiz Marieb on the iPhone 18 Pro and iPhone Duo in a group interview at Apple’s London HQ, and he lifted the lid on how Ceramic Shield 2 — which we described as “the first iPhone glass we fully trust” earlier this year — managed to deliver such a noticeable jump in quality versus the original Ceramic Shield, and why he’s “especially proud” of the iPhone Duo’s hinge durability.

“Personally, when I see someone put a screen protector on their iPhone, it makes my skin crawl, because we work so hard to make beautiful front screens,” Marieb told me. “So we very much wanted to develop new coatings that could withstand [scratches], but also make sure that these coatings were wear-resistant as well. We worry about scratching, which is obviously very dependent on having [material that can withstand] very sharp things going into the screen. But we also worry about wear over time; as people use the screen, whether they’ll wear away that surface. And it turns out that those things are a little counterindicated in a lot of materials.

“So we had to try to optimize both of those [qualities] simultaneously [...] And I think we finally hit on a nice balance between the two [in Ceramic Shield 2]. We could have made it more scratch-resistant, but it would have been a little less wear-resistant. It’s the long life we’re looking for against both of those loads over time.”

We try to say, ‘How are customers actually using this? What exactly are they exposing it to in the real world?’ And we make tests that mimic those things.

Tom Marieb, VP of Hardware Engineering, Apple

Marieb added that, in testing Ceramic Shield 2, Apple accounted for half a decade’s worth of use in a comparatively minuscule testing period: “We very much try to meet the customer where they live, and so we don't design tests that measure old military specs or old standards; we try to say, ‘How are customers actually using this? What exactly are they exposing it to in the real world?’ And we make tests that mimic those things.

“And as you said, people waiting a year or two to actually see the benefits of [Ceramic Shield 2] means we've correctly predicted how people would use it. We accelerate time to try to compress those things into the engineering cycle, so that we can feed back as we try one thing after another, and can represent five years of life — or even more — within a couple of weeks of testing.”

The display is the most important part of any iPhone, but the foldable iPhone Duo saw Apple tasked with protecting a new, equally crucial component: the hinge.

Like any foldable, the Duo can be used open or closed, and Apple has also developed dedicated ‘Seated’ or ‘Standing’ modes that will see the Duo bent at various angles for extended periods. The former displays visual content on the top half of the screen and viewing controls on the bottom (picture a Game Boy Advance), while the latter turns the Duo into a bedside clock, photo gallery, or weather screen via StandBy.

Whichever orientation you choose, the Duo remains fixed in place — but the work to make that happen wasn’t easy.

“I'm glad you hit on this, because this is something I'm especially proud of, and it took us a long time [to crack],” Marieb explained. “What we worry about with this device is that people see how thin it is and they think it's fragile. People seem to be worried about the Air, too, but it's honestly one of the most reliable phones we’ve ever made. And so we thought, ‘How do we design a hinge that feels very solid when you close it, but also really solid when you open it?’

“We really worked on the torque profile very heavily, and that means changing a lot of the mechanical properties of the hinge to have it feel solid, like a high-end automobile's car door, when you shut it. That was design intent, so people would have a feeling like, ‘Oh, it's okay. This is well crafted, and it's safe for me to use and not worry about it.’

And then, as you said, we have a lot of use cases where the Duo is [in a half-folded state]. And so we also had to think, ‘Can people interact with this [device] and not have it feel floppy?’ So getting those torque profiles right at both those ends, as well as in the middle — not having it feel like you're pulling something open, and not feeling as if it's floppy — we spent a lot of time optimizing that. So thank you for noticing, because a lot of blood, sweat, and tears went into that.”

On top (literally) of the iPhone Duo’s hinge, Apple has equipped its first foldable phone with a 7.6‑inch nano‑texture display. This new material isn’t a million miles away from the anti-reflective nano-texture glass that can be added to the best MacBooks, though, of course, the Duo version of said glass needs to bend in half.

Another journalist in my group interview with Marieb noted that foldable creases typically appear minimal out of the box, but become more prominent mere months after being used extensively. In response, the Apple executive was bullish on the longevity of the Duo’s hinge and explained that the nano‑texture display should help maintain its obscurity:

“Hold us accountable to that, please […] The choice of a matte finish — apart from it being beautiful — is part of that equation. When you look at glossy displays, their specularity makes it very easy to pick up topology differences. That’s part of the reason we picked the matte finish — it’s not only beautiful in terms of preventing glare, but it’s also more forgiving of [topology] changes over time.”

Apple, then, is supremely confident in the durability credentials of its first foldable phone — and we look forward to putting the iPhone Duo through its paces ahead of its official launch on October 23. For our full verdict on Apple's latest candybar handsets, check out our iPhone 18 Pro and 18 Pro Max review.

• Nats report reveals a software defect caused days of flight disruption
• The defect occurred in the 'space of a millisecond'
• Severity of the incident was not identified until 2.5 hours later

The UK airspace came to a grinding halt earlier this month after the UK’s National Air Traffic Services (Nats) announced that there was a glitch in its flight processing system.

Following an investigation, NATS has determined that the fault was caused by a manual request for a squawk code that became corrupted, forcing the National Airspace System (NAS) that covers the UK to be restarted, grounding and diverting thousands of aircraft.

The disruption began in the morning of 8 September, and while the initial glitch was fixed within six hours, the subsequent disruption across the UK lasted over two days leaving hundreds of thousands of passengers stranded.

Squawk codes are used to track and identify aircraft during flight plans, allowing air traffic controllers to monitor altitude, speed, direction, and flight progress.

The glitch occurred when a flight manually requested a squawk code, with the report noting that there was “nothing abnormal or invalid” about the request. During the processing of this request, a second “higher priority activity” came through to NAS, temporarily pausing the processing of the manually requested squawk.

When the process resumed the generated squawk was corrupted, causing some subsequent flight data to suffer the same fate. All of this occurred within the “space of a millisecond”, the report states.

With flight data now inaccurate for some flights, safety had to be prioritized due to the limited information available at the time. Only flights within the London Area Control Centre were affected by the software defect, but in order to safely restart the NAS, flight restrictions were put in place for around six hours across the UK.

But the report also notes that the severity of the issue was only discovered two and a half hours

Due to the number of cancelled and delayed flights, disruption continued for two days as stranded passengers waited to catch rescheduled flights.

All in all, 2,163 flights were affected by the restrictions and 300,000 passengers were impacted across airports of all sizes, including major international transport hubs such as Heathrow, Gatwick, Stansted and Manchester.

The UK government, which owns just under half of Nats, has placed additional pressure on the service, with Transport Secretary Heidi Alexander labelling the disruption as “completely unacceptable”.

“I have now received Nats' report and, while I am pleased to see that the safety of passengers was protected, it’s clear we need to urgently understand why this issue was not discovered and fixed before it caused chaos,” the transport secretary said. “I have therefore tasked the CAA with conducting an independent review to check Nats’ findings and investigate their investment plans to enhance resilience in the future, along with regulatory accountability.

“It is crucial that our national infrastructure is fit for the future, and this government will make sure the aviation sector is as resilient as possible, so passengers can get to where they need to be.”

“I would like to apologise again, very sincerely, to everyone who was affected last week,” Martin Rolfe, Chief Executive of NATS, said in a statement. “It's our job to get people where they want to go, quickly and without delay and we are devastated when that goes wrong. However, our primary role is to keep our skies safe, and everyone who flies through them. At no point last week was safety in question.”

Affected passengers have also raised questions about the level of support they received. Due to the extraordinary circumstances involved in the disruption, almost all of those affected will not receive compensation. According to the Civil Aviation Authority, passengers had the option of choosing between a rescheduled flight or a refund, and were entitled to care and assistance from airlines including food, drink, accommodation, and transfers.

Via BBC