I was thinking that LocoRoco or a LocoRoco like game would be ideal for any phone with a Gyroscope or Accelerometer; of which there are many.
I thought that LocoRoco would be ideal as it would not require any hardkey mapping, as the game, which is originally a PSP title, only uses the L and R keys to tilt the screen left and right. (Which could possibly be duplicated by tilting the phone left and right)
Unfortunately I have no developing skills so I would be useless if it came to helping with the development of it.
I searched to see if there had been any other interest in LocoRoco coming to Android or Windows Mobile, and fair to say there were 1or2 threads dating back to 2008-2009, but neither of which attracted a lot of attention.
Sorry I couldn't add a link to the game, new user restrictions