Windows 7 Is Setup on both! Upgrade was a breeze and it runs MUCH Faster than vista on both my laptop and desktop,also more stable.One thing i like is the layout of the control panel has been improved upon and little things such as the Action Center (No more annoying bubbles!) and task bar.Also the fact that my laptops processor is downclocked to 800Mhz (Yes,Done through the power settings control panel

) and it runs like a dream (1 1/2 hours under vista,2hrs under windows 7!)
Im not a fan of the new windows media player (The only feature which i love is the new 'preview' feature) and also home group doesn't seem to work....
Overall even though im not using the RTM,i'd choose this over vista anyday.
I Wonder how low i could run my laptops CPU....