Finally, there’s an app that takes advantage of NFC-equipped phones. Engadget reports that there is an app in the Android Market Place called Add Friend (Facebook). The app uses the NFC chips in you and your new contact’s phone to instantly swap Facebook information. This, of course, assumes that 1) both you and your contact have phones that have NFC chips, 2) both of you are using Android phones, and 3) both of you have the Add Friend (Facebook) app installed on your phones.
If you happen to be in that moment with all of these, and your contact is willing to share his/her Facebook info, it’s a simple as opening the app and tapping the two phones together and the information has been shared. And, if for some reason that you want to remove his or her info on Facebook, well… there’s always the unfriend button.
Source: Android Market Place