Personally? I am immediately upgrading to Windows 8. In addition, I will be purchasing the new Surface tablet as soon as I possibly can. (Pro version with Windows 8, of course!). (I've been waiting a long time for a tablet to come out with a proper OS, that you can also use for work!)
I really do not understand all the hate that Windows 8 is getting. Maybe people are just afraid of change? To be honest, there is nothing you can do on Windows 7 that you can't do on Windows 8.
As a Windows developer myself, I love EVERYTHING that Microsoft has presented to us in Windows 8. Everything from the App Store to the METRO UI. That is not to mention the way you develop for it! The developing experience for Windows RTM just leaves iOS and Android programming behind in the dust!
The new METRO UI (Windows RTM) is sleek, fast and damn good looking. It is obviously meant to be used for tablets, but it would be a HUGE mistake by Microsoft not to integrate that new UI directly into Windows 8 itself (If you cannot see why that is, you are really beyond help

).