Well I downloaded Vista beta 2 iso and installed it on a VM...I'm not crazy enough to put it on my laptop just yet! First impressions were...who kidnapped the Apple OSX designer!?! When M$ do things, they don't do them by halves...the Aqua interface is extremely over the top! I'd much prefer it to be completely clean cut as before than flashy and just have the thing run faster!
IE 7.0 didn't look too bad...seems to view CSS based sites a lot differently to Firefox though which is not a good thing for the Web Designers of the world.
I'm already running Windows Media Player 11 and have been impressed by the syncing with my Pocket PC Atom device and miniSD storage cards.
I'm very tempted on seeing this to run it on my home laptop which I use to surf the web and develop in Visual Studio 2005 my pet project. Might need to buy some more RAM for it though...it only has 512Mb at the minute and I'm not sure that's gonna be enough. Plus the base install of Vista Ultimate Beta 2 was just under 10Gb! That's 10Gb...for an operating system!
...For my next trick I'm going to install Office 2007 and also Sharepoint 2007 server (not sure whether that'll go on Vista or whether I need to run that on Server 2003).