Yeah, I'm not too enthusiastic about Vista. It's based on XP, which in turn uses the 2000 kernel. It looks crap, just looks like XP with a lame skin on top.
WinFS is scheduled for Blackcomb, IIRC. Blackcomb is the codename for the successor to Windows Server 2003, due out in about 2010 I believe.
In fact, I'm sick of Windows. Every version is the same, the only reason I use it is because that's where all the main software and, most importantly, the games are. And it's a lot easier than Linux, but it's just dull to use.
I think the time will soon come when I only use Windows for gaming. Unless the professional game houses pull the finger out and begin to seriously target Linux as well.
I'd still like to try Vista, though. Doubt it's anything special, however.