Ok, i'll apologize for being such a homer here with all this YouTube stuff but you understand that Q4 is a short quarter so we gotta get all our releases out before the holidays :)
Today Google Earth launched an integrate layer which allows you to discover and play recently uploaded YouTube videos with geo-tag info. It's pretty cool - their blog entry has more info.
What's nice about this stuff is that there are 1,000 different ways to discovery videos - geo is just one of them - but there's no way YouTube.com can be all things to all people. So these alternate exploration paths "unlock" content by presenting it in different ways. Congrats to Brandon and the Earth team - thanks for being a great development partner.
Hope you enjoy!