SCVNGR introduces the social check-in, an awesome new way to check-in at your favorite places with your friends simply by bumping phones together. You'll get two points times the number of people you do it with.
To try it out (cause it's awesome!) grab the free SCVNGR app for iPhone & Android. Then head to a place with a friend (or two, or twenty) and open up the SCVNGR app. Select the place. Tap "social check-in" and then all bump your phones at the same time!
Try it at a restaurant, a park, a cafe, a bar (drink in one hand, SCVNGR in the other!) wherever you go with your friends.
For more on SCVNGR, check out http://www.scvngr.com.