I can see I am already disagreeing with a couple of the views, unfortunately that includes Paul Thurrot.. When I read his blog, I almost felt that I had been given a different release. If you want to do it for the experiment, then good luck. You will get nothing out of M3 that you cannot get in Vista. It has many cosmetic changes, in spite of previous feedback on that subject, with Vista, particularly to the Control Pane. There are a couple of extra utilities which are used little by the average person. I am still battling to find the way to eliminate the unneccessary items in the Windows Explorer navigational pane. It has also changed the way the desktop "personalization" operates, and has floated the gadgets.(You no longer need the sidebar) Performance wise is where I seem to be standing alone.. I have two identical computers running Vista Ultimate and Windows 7, 6801. I could not detect any performance differences in the startup, or the running of programs. It is still a base for the final release and I feel certain that even the Beta will show some improvements. One cosmetic difference for me (I have an older video card. Nvidea 7600 series) was that, in Vista, my performance index struggled up to 4.9. In Windows 7 it was 1 (!!!), based on the Aero performance only, which I don't use -lol. Anyway - still experimenting. Maybe more later!