...I have no idea. But it would seem to be an upcoming social network. I feel as if it's going to be like a mix between Twitter and Facebook but more focused on certain fields? Maybe... it's just a guess. But one thing I'm making sure is reserving up my name. You could try watching the preview to get a guess on what it's about.
You know how it is to come up to twitter or Facebook the very first time only to have a hard time trying to find a good username because your usual ones are taken? Then you'd wish to have been aware of the website probably months or years before it went boom just to reserve your name. Yeah?
Now this isn't a surefire awesome social network and I'm not endorsing it in any way to be a great of a deal. I'm just saying it looks like something to watch out for and it won't hurt reserving the name as early as now 