Everyone run over and vote for my suggestion of adding APIs for webcam support in the XNA framework.  Do it now! Even if you don't know what I'm talking about!  Ha ha.

Seriously though, I think that would be sweet, and would make homegrown games that much better.

UPDATE: OK, evidently, you must first go to the Microsoft connect homepage and sign-in/register with a Windows Live ID/MS Passport account.  Then, the link above will work.  That's kind of frustrating.  Sorry.