Great to see these guys, especially Mark Zuckerberg, though worth multimillions, are able to simply hang out in shorts and a tee to sign a deal as big as this. Shows that these guys arent too caught up inthe typical corporate scene, but are still driven by the passion for just making their product the best it can be, make it successful,and hanging out and spending time and experiences with people. Its the basic formula for facebook. Sharing and connecting through different simple relationship threads.
If facebook somehow lost all data tomorrow and lost its domain to the government, you can bet Zuckerberg would have another job lined up for a ton of money in no time.
I predict Aardvark.com to be next in line, either as a purchase or a direct copy. It's by far the best social graph application, scratch that, it's really the best social app on the internet right now. It's what Facebook's next step should be.