Saw these guys at Facebook HQ a couple months ago. Seemed like during their entire presentation they were trying to pitch their company to someone with purchasing power at FB
ha, I was one of the presenters there, for Sharendipity. You're right that Aardvark didn't talk much about the tech, considering it was for Developer Fridays. They did focus a lot on expanding the ways you could use the social graph in FB though. I thought it was nice to see that they've been acquired, although I thought the price tag was a bit surprising.