I'm considering writing a MMORPG for PPC - probably 2D rather than 3D for sake of content creation and ultra-low bandwidth use.
There would probably also be a PC version, maybe even a mobile phone version too.
My question is, would people want to play an online RPG game on a PDA at all? If so, would you mind if the graphics weren't 3D?
How much data would you be willing to send back and forth in an hour for gaming if you're paying per mb for the data?