Six Overground introduces dropdrop 1.1, their popular social networking app for iOS devices. dropdrop lets you leave "drops" where you travel for others to discover. A drop is a message or photo placed at a specific location in the real world. Missed that cute stranger on the train platform? Leave an anonymous drop for them to find when they return. Like user-generated geofences, you determine the size of the drop, its duration, and who can see it. dropdrop is Free and can be downloaded from iTunes.
dropdrop, an App to Leave Virtual Messages in the Real World