I got xmoto running on Iphone. It use the xmoto trunk, ans as little tweak as possible. This port is using the SDL 1.3. xmoto was ported to SDL 1.3. SDL_gfx was ported to SDL 1.3 too. (i think some stuff may not work)
Input are not handled, it’s not possible at the moment to control the moto. SDL has support for it, accelerometer can be used like a joystick and the toochscreen is recognised.