Am I missing something? They're comparing 1st-quarter sales this year against the previous quarter, and against 3rd-quarter sales during system launch, right? Retail is dead during most of January, and all of February. Stores usually don't even stock up on things, and some departments look like they're getting closed or moved. A 21% drop from the Christmas quarter preceding it means nothing. Even if it's against the 1st quarter last year, it means nothing. The 360 was a hot new item then. Then there's the small business of launch frenzy vs a year and a half later. Hey, if the system's in trouble, I definitely want to know, since I bought one. But this tells me nothing.
If Vista is leading Microsoft's profitability, then I'm really going to get depressed.