User assignable buttons

As most Pocket PCs have a different arrangement of buttons I'd quite like to be able to offer different button configurations or even allow the user to assign thier own buttons while in game, or is this already possible?
No, what he meant was that you remap PPC keys directly in GE, not on your PPC.
See Game Properties > Pocket PC keys in Game Editor Application
PPC keys will then automatically be remap with your game