It is identical in nearly every respect (bar a couple of level tweaks for performance reasons) and features the new 'normal-person friendly' joypad controls... if you turn them on.
Please click on the big fat picture above for a link to the App Store.
NOTE: There's currently a weird bug when running it on iPhone 5 that causes it to crash on some phones. An update is already with Apple, awaiting review! Thanks for your patience!