re: Wait for it.....
they won't fall all at once but when it does happen, they will have to pull the plug on supporting so many of their money losing ventures that it'll seem like they are shutting down. The vast majority of their profits come from the Windows OS(desktop/server) and Microsoft Office and they continue to lose a billion or so annually on Windows Mobile, MSN, online stuff, Xbox, etc. So as they move further down the curve, they'll have to start cutting more than just a few jobs and things like MS Money.
And it does not help one bit that the iPhone and now Android is showing people that they don't need Windows to have a useful computing experience. They'll either have to start moving software to other platforms and try to compete or keep riding the market down to where they are just another player.
Angelic Steve because they opened peoples eyes to the fact that there can be a happy life outside of Windows.