Writing

Notes from the seams.

Most software writing is about software. Most hardware writing is about hardware. The interesting problems — and the expensive ones — live in between. That's mostly what I write about here.

Browse: iOS 2 Android 1 App maintenance 1 Foldables 1 On-device AI 1

Two phones, each with an AI chip glowing on its screen, and a crossed-out cloud above them that they no longer need to reach.

7 October 2026 · 6 min read

Your app can run AI on the phone now. Here's what that does to the bill.

Since iOS 26 on iPhone and Gemini Nano on Android, an app can run a language model on the user's own phone with no per-request API cost — but only on recent flagship devices, so most apps still need a cloud fallback.

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Diagram of a book-style foldable phone: a list on the left leaf and a detail pane on the right, joined at the hinge.

11 September 2026 · 5 min read

Apple shipped a foldable. Your app has six weeks.

The iPhone Duo opens to 7.6 inches and reaches customers on 23 October. If your app assumed one screen that never changes shape, that assumption now has a delivery date attached.

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