Launches are not a good indication of a system's success. The PSP had a better launch than the DS. The DS is in the lead now. The Dreamcast had a great launch, while the PS2 had almost no games in Japan (The Matrix DVD was the best seller), and had a crippling shortage in the US launch.
It's the first 18 months that give the best indication.
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs








