I know Xojo allows you to build iOS apps. But that aside, could you build a web app designed for a smartphone? Obviously you would have to run it from your phone's browser, but is there any reason that wouldn't work?
There's some information on this topic here:
@Peter G Well, that's the kind of positive news one likes to hear.
But, has anyone done it?
Yes, i run mobile app for our organisation which runs predominantly on smartphone. I did a brief overview at XDC on it. Not only possible but relatively straightforward.