This is the natural outcome when you actually try to release a good product (and succeed). Windwos 7's shares will grow bigger that Vista's within an year. In 2 or 3 years it will even beat XP.
i dont have win 7 yet, but it certainly sounds excellent. i recommend installing win 7 pro/ultimate 64-bit, because of the RAM advantage received from 64-bit processing (up to 2 exabytes instead of 4GB from 32-bit), and win 7 pro and ultimate have xp mode, a very useful utility.