Well I tried. At the end of Part 2, I had put Vista on my desktop computer and installed Office 2007, SQL 2005 and VS 2005. So far so good.
Then I installed Vista on my IBM/Lenovo T43p laptop. However, although my desktop could see the laptop on the network, the laptop could not see the desktop machine. Which meant I could not print from the laptop or share files. No good.
Then I tried to synch my Pocket PC and Smartphone with the desktop computer using Windows Mobile Device Center, which is in Beta 3. Neither device synched. No good.
So I have now decided to punt on Vista until more drivers come out and more of the add-on software is finished. The consumer launch of Vista is end of January I believe, so using it full time right now is a bit premature.
I will continue to play with it, but it is just not ready for me to use full time. :(