I was going to download it, except I read the requirements... And I've got Windows 98. I'll be getting XP with my new desktop sometime within a year though, so I will be looking forward to it. Btw, I like that the icon finally changed.
I've heard from people that have tried it that it was pretty awful, all things considered.
And, as with all new Microsoft products, it will need to be validated upon installation (easy to bypass), and also need SP2 - and you must be mad if you think I'm going to install SP2.