Another awesome feature of the GameBoy Advance is that it is supposed to tie into the Nintendo GameCube for private in-game information, ala the VMU on a Dreamcast. It would also make the Pokemon franchise happier, as being able to connect to the unit directly for Pokemon stadium battles and other pocket to main deck games (Harvest Moon, Mario Golf, etc), would benefit games greatly. It's also rumored to be backwards compatable. Any system that hits the shelves with a massive library is bound to do extremely well.