I just tried the pc demo with a keyboard, and all I can say is that the camera control is a bit counter-intuitive. To move the camera left, you have to move the mouse right and vice versa for moving the camera right. This is a bit of a problem, for moving the camera directs what direction you move in. This little problem caused me to feel pretty dizzy, so I had to stop playing 5minutes in. All in all, don't bother with the pc version unless if you have a joypad, or i guess if you rotate your mouse 180 degrees.