If Microsoft comes out with one, maybe.

But aren't many apps using APIs into CHatGPT?

No. Because ChatGPT will be available on other platforms that people already use, Microsoft phones will have awful user experience and overall polish, and iOS/Android will soon have something (better integrated) that is likely nearly as good as ChatGPT.

kind of my point. Google will have it's own google assistant. apple charges insane amounts of money to even be a digital product. but I think you aren't allowed to compete against siri.

you have to control the biggest end point out there.

also, the digital assistant is the experience. what is a OS/Browser a shitty digital assistant. I want to take a picture, I want my file from last week, I want to see the sports scores etc.

Disagree with your reasoning. WP had a great UX. It failed because of developer support. This would even more true today. It's just very hard to compete with the maturity of the mobile ecosystems Google and Apple have built.

A MS phone would lack popular apps, you wouldn't be able to do mobile payments, you wouldn't be able to easily restore/backup from old devices, etc.

I loved my Windows Phone.

Me too. Android and even iOS seem so clumsy in comparison to WP's UI.

It's not that useful from a phone for work. You need to copy/paste large swaths of text into other apps, the UI is small etc.

not saying there won't be other devices. on the other end is the remote and/or home speaker. 3d eyewear. TVs, watches. but alot of time it's the phone.

I don't think the app itself will be anywhere near enough.

What makes it special if you can use it on all other phones?

I think a multi-modal LLM could give Microsoft a real shot at the phone market. Apps overall will become less relevant as 1-LLM app rules everything. Google could fumble here because they don't really like LLMs as they are a fundamental challenge to their operating model.

Not really since the API allows to create your own app and its website is pretty mobile compatible too.

I have it on my iPhone.