It's clear that Win8 is coming although no announcement date has been made yet. However, with win7 a lot of people went from the pre-release version to the RTM/retail version without issue and have been enjoying win7 ever since. I have to wonder if win8 will be as smooth of a release as win7? I read an early report that the video card drivers (although available) wasn't up to par yet, for example. And it's not clear if they will repeat the same pre release OS to retail OS as they did with win7. Turns out there was very little changed between those versions (although you still needed to activate a key, some minor updates, etc).