I am able to make this theme look like a web app on the iphone to some degree but not completely.

I was able to add a web clip icon for the home page
I was able to launch the site via that home page icon in web app mode (i.e. there is no browser URL text field at the top of the screen or button bar at the bottom of the screen)
However, when I go to any post on that "web app" it fires up iPhone's Safari and changes the entire experience to be just a web page rather than a web app.

Any suggestions?