I always thought the RPG maker was a great idea. However it was always limited to what you could create due to storage space, and then you could never let anyone else play without giving up a memery card to them to deal with.
I always thought it would would work better on a PC where you could create then upload it to a site where you and other members could download and swap as you wished. If it's out there already I've never seen it yet, but I always thought that would be the way to do it up right. Anyone else think that?