Hot answers tagged iphone
As far as I know all those devices are able to show up to 60 fps, however, for mobile development you should think differently: You've tagged your question with 'directx', but this won't work. iOS as well as Android both support OpenGL ES only, which is a more lightweight version of the desktop OpenGL. The more frames you display, the more work the GPU has ...
Take a good look at the Hammer framework, it's great: http://eightmedia.github.io/hammer.js/ Here's a good an on-screen controller framework that looks pretty good too: https://github.com/austinhallock/html5-virtual-game-controller
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