The new Gizmondo will come with either Windows CE 6.0 or Google’s new Android operating system. the new unit will be open, so that you can run any Windows CE game on it. But you have to choose between CE and Android. You can’t have both, or switch, at least not yet.
http://kotaku.com/5048758/gizmondo-20-definitely-out-by-christmas-this-year
Wasn’t there some work done wtih jME and Android a while back? This will probably be worthwhile to experiment with.