From all that I've been reading, Windows 7 is shaping up to be an excellent OS so far, and is what Vista should of been. Currently, it's on build 7000, which is the beta version. You can view screenshots of it here. Paul Thurott says that there will be one beta and one RC, and is even predicting that the final version will ship in April. I'm a bit skeptical of that prediction though, and am taking of guess of the final version to ship around June at the rate development on Windows 7 is going. Here's a video of build 6956 in action. Windows 7 also has a new boot screen, which is much better than Vista's boot screen. People have been reporting that this build is very stable and is even faster than Vista, and that all of their Vista drivers work just fine on it. Some people may not like the way the new taskbar looks, but this gallery shows that it's customizable. Microsoft is expected to release a public beta around January 5th and will show it off at the Consumer Electronics Show.