It occurred to me, perhaps in theory, that games could use the HD port, like a faster info access external hard drive dedicated to a game, sort of a reliability in between optical and cartridge tech. I see expandability even to advanced drives optical and card or cart. Who knows, I think Nintendo has a lot of announcements in the future, and some games may have late releases for more than just a awesome controller, but a whole new way of using a non-downloaded game. Games that are like Jewel cases you plug into the USB ports.
*Somehow I think Nintendo is clever enough to rely on expansion by USB and OS Updates to extend the ability of the current system limiting the requirements of a new system too soon. Controllers seem for ever. Be nice to have a P2 screen controller even if a little smaller.