I have executed a first-playable of a d20 RPG Combat sequence that I am developing for Flash Lite 1.1 on my Nokia 3650 Handset. It gives me goose bumps to play it. I modeled it on the old NES Enix (b4 t/Square) games I used to play as a kid.
A hyper text version of the D20 system, crafted after TSR's Dungeons and Dragons, 3rd edition made by Wizards of the Coast is available @
http://www.d20srd.org/index.htm
Flash RULES.