The very first pitch I got at TechCrunch Disrupt was from the Israeli founders of Doweet, a simple but ambitious iPhone app. Doweet ties into Facebook to share and discuss real life events. Why? Well, the purpose isn't exactly clear other than some rather bold marketing speak purporting to "revolutionize the way we do things together." I'm not sure about that, but here's what Doweet does.
First, you'll connect the app to your Facebook account. Next, you'll add friends using Doweet except that in my case (and probably 99% of all cases) none of my friends were using Doweet. User adoption, as with all social apps, will be a hurdle. Then you'll start creating "Doweets" which are just events, really. It may be that you're