I downloaded this a couple of days again. Did a clean install of Win7 and then ran the sp1. The sad news is that it marks your desktop with "Evaluation Copy 7600". I have a retail boxed copy of Win7 Pro. The good news is that it is easy to uninstall via control panel. Conclusion? Wait until it's offered through Win Updates.
"Conclusion? Wait until it's offered through Win Updates" I quite agree. I am grateful to those who try out beta versions and the like but the improvements are usually marginal and I do not want to spend even more time "fiddling under the bonnet" of my PC. It's bad enough, says my wife, how long I spend on AV, Malware updates and scans plus ATI imaging and clones!