I'm certainly buying a DSi. I've had my original DS for four odd years, since the US launch. It's clunky, the screen's a mess, and games don't even seem to register a lot of the time.
Downloadable titles through the Wii, some great new features which I know I'll use, a larger brighter screen and an even sleeker frame? I'd gladly purchase that to play Dragon Quest IX, 358/2 Days and other The Another World on.
About the rumour, I sincerely doubt there's a GBA slot on this supposed model, but I know it would make a lot of people happy. Still, this is interesting. I'll wait and see =D.
-- Andy