Senh: I’m glad that I currently don’t get too many check-in’s on my twitter stream. I don’t find them useful at all. I use Facebook to keep in touch with people, and Twitter as pretty much an RSS reader and marketing tool. It makes more sense on Facebook, but not really on Twitter. Still, now that Facebook is doing check-ins, I doubt Twitter will be waiting too long to launch theirs.
Senh: Wings has an interesting concept, but there are probably privacy concerns. I'm not sure people would be willing to let this app pull in their private information from various social networking sites to get a date. It's kinda creepy. It's good concept, just not sure, with the recent flare-up from Facebook users regarding privacy settings changes, if people will actually their personal info to be sliced and diced by a third-party app.