If you can select a DS, then it would be very cool to use this control to render MMPOG's! You could show a topdown view of a games world or (now) a 3D one!
Just a through after the comments about a mashup - do any of the xbox games have that data exposed so someone could do that? I'm out of touch with games these days, but assuming you can get some map data from it, you could plot a lot on there! Where people
are, where points of interest in the game are; maybe clans or groups could plot routes for adventures or something like that?! (Random thoughts coming from my brain)