There is an interesting article on the Register that discussed that about 35% of the hardware that was shipped capable of running Windows Vista being downgraded by the vendor or end user to Windows XP (hardware pool above 3000 units). My question is what about users or vendors that switched over to Linux? That is what I did to my HP TX1320 lappy. It came Vista certified and I ran Vista for a good four months. But I too could not stand how slow it was and the lack of any great visual appeal. Ubuntu came to the rescue and I have not looked back. Well that is a lie, I still have the Vista partition. I just have no need to boot into that OS.
I do hope Windows 7 will be a success. I have been a supporter of MS and hope they will finally produce a product without bloat. Till then, this former Windows Admin is ecstatic what an operating system can do minus Microsoft.