I do a lot of code review and doc/comment updates on my iPhone, using Working Copy and a small bluetooth keyboard. It turns out to be ideal because the small screen size means better mental focus.

I have a vm I connect into via ShellFish (same dev as Working Copy) for when I want to checkout/fix/deploy, but it's a rarity that I need to do that.

I do in effect - using it as my internet connection for a laptop....and I've used ssh on a phone in desperation at times but I think the experience is grim.

I have wanted to use jira etc to look up information and that just ends up being a problem of how one's company decides to limit access.

I have fixed a few one-liners from a browser editor. Anything more complicated and I'd just go fire up the workstation. And for one-liners I wouldn't want anything more sophisticated than a browser.

There is no "phone". It's a computer, that also make calls. It's like any other laptop with a sim card. It just has a smaller screen.

I've used termux + neovim with a code assistant and it works quite well. However the mobile keyboard is not ideal for coding.

I can see "vibe-coding" on smartphones taking off, particularly for mobile and web dev. For new younger people.

Impossible to replicate the experience of a desktop, anyone that is accustomed to that... probably no.

Cellular data has been ubiquitous for about 15 years.

This suggests that the market for mobile phone development tools is probably efficient and the supply of existing tools satisfy the existing demand at an equilibrium price.

So as a business, it is probably not a great market to enter. Even worse, mobile applications require third party approval and require unpaid maintenance when mobile platforms change technical details and business details for their app stores.

And of course, the app stores are terrible for discoverability and have high overhead.

Good luck.