After just a few days with the trial I dumped Windows 8 and went back to Windows 7 for my netbook (even managed to solve prior wifi issues, so I'm doubly happy). The interface and subtle changes weren't enough to impress me, and they mostly aggravated me. It's Windows 7 with a lousy GUI and when that crappy GUI is turned off... it's just Windows 7. Can't say whether 7 or 8 run faster, but I know my use of the netbook as a Windows 7 machine is much smoother, more efficient, and ultimately 'faster'.
Vista suffered from slow 3rd party tech (drivers, apps) adoption which marred its release, and as a result many compared it to Windows ME. But I feel that Win8 is much more a "ME" and I think we're about to see a zero embrace by the desktop and laptop community for Windows 8, and it will end up only being a Tablet/Touch Interface OS. Otherwise there's no news and no compelling reason to go through the hassle of leaving Windows 7. The lack of advances at least explains the proposed low pricing. With the logo change it's obvious to me at least that M$ is expecting failure and trying to stave it off as best they can. "Hey, look at the shiney new logo! It's proof we're changing!!!!!"