So doesn't Windows work right now? Not quite so (until next year sometime) according to this Fortune Magazine article. Ironically, Apple have always assumed "It should just work", and when it comes to their technology (software or hardware) at the very least they assume "it does work".
I think this marketing message for the next release of Windows is broken, especially for someone whose been using what appears to be a not "just working" operating systems since Windows 2.0 :-(