Have you been looking for a way to call your Facebook friends on your iPhone or your Android device? Haven’t figured out their numbers yet? A new solution from Vonage offers free calls to all you Facebook friends who, virally, have downloaded the same app. The calls work over WiFi and 3G/4G networks.
The app, called Vonage Mobile for Facebook, is an odd, viral solution for voice communications. The app trolls your Facebook profile for compatible friends and shows you that they are able to either take voice calls or chat. Regular updates remind you to tell your buds about the service via Facebook, thereby completing the human centipede of Vonage connected-ness.