I have been using the Windows 8 beta on my secondary machine for some weeks. Initially, I was really a fan of metro, but in the end the context switching that a single-task environment requires (yes, I know, you can split the screen) is annoying when doing serious work on a desktop. Taking aside Metro, Windows 8 is really an incremental upgrade for regular desktop use.<p>I do believe Metro is great for tablets. As a five-year long OS X user (and Linux before), I'd seriously consider buying a Surface tablet if they nail things right: I'd like to be able to use it like an iPad on the road, connect it to a screen and Bluetooth mouse/keyboard at home/work to use it as a traditional desktop.<p>We will see ;).