I've been running Windows Vista for two months now as my main desktop at work and it's by far the most astounding OS from Microsoft to date.  When I shift back to my Tablet running Windows XP suddenly food has no taste and the world is a dreary shade of gray.

I have Media Center running on Windows Vista.

I have Visual Studio 2005 running on Windows Vista.

I'm compiling apps for Media Center on Windows Vista in Visual Studio 2005. 

In a nutshell: If you are a developer for Media Center, you ain't seen nothing yet.   You're gonna love it...

http://www.microsoft.com/windowsvista/default.mspx