in reply to Perlmonks SmartPhone App
Just use a nodelet hack (i.e. JS in the Free Nodelet) to check the user agent of your mobile browser. Then you can modify the CSS or change the UI with new controls running JS actions.
See Free nodelet hack: Auto-Fold threads in RAT for special browsers for an example.
No "App" needed, just HTML, CSS and JS. (My phone is neither iOS nor Android).