Edit: I've locked the thread from further comments. The conversation got out of control with such negativity that it ceased to be helpful to those involved or the community.
Niall Ginsbourg posted this the other day…
“…unless you’re after some pretty specific (and less than useful) changes offered in the Win7 incarnation of this SDK – my best advice to developers would be to completely give this SDK a miss – and instead revert back to Vista Media Center SDK /along with Vista Dev platform (if you do plan on persisting with Media Center development).”
Bad advice. I mean really, really bad.
Windows 7 is generally accepted by the industry as a whole to be much better than Windows Vista. By the time all is said and done it will sell loads more copies and be much more prevalent than Windows Vista. The Windows Media Center platform has quite a few improvements for Media Center Markup Language (MCML) and the Managed Code Object Model which gives you the most seamless and elegant chance to have a great