Nice port, but the control scheme sucks big time... Otherwise it's ok, but 1st: mouse remembers your last position and interprets it as a movement when you touch a different location - so no mouse look.
2nd: Not enough buttons. This really needs to utilize those volume buttons for shooting and jumping (like on duke3d port - marvellous control w/ accelerometer, touchscreen and all the keys but camera and power). If you people get this done it's fully playable and enjoyable