Whenever I use Windows, it always seems to shut itself down frequently when I'm in the middle of working on something. There's Blue Screens, automagic updates, and random freezes. So, what's different about this? It isn't going to change the uptime very much.
I got the retail of windows 7, never had a blue sceen, turned off automatic update (so it never reboots because of updating) and never had a freeze caused by the OS. I had the exact same experience with the RC. And, for the most part, same with the beta (minor issues, but it was a beta version)
Why does this commercial product work at all without payment?
Its the release client, mostly a demo product, for people to try it before the retail version is released, so that they could go and buy it knowing that is better than Vista
You cannot have a science without measurement. -- R. W. Hamming