Great! Someone else has done something similar! That means there's a market.
To be honest I don't see answers for those two questions on their landing page. My first feeling was that it was like more complicated version of the "connect" button in Xobni.
I just don't want them to get frozen by the First Mover Paranoia: http://blog.opportunitycloud.com/2009/12/21/stealth-disease-...