This application demonstrates what Gripwire's Playfield SDK is capable of. In this app, numerous Android devices can discover and find one another. Once connected, users of each device can communicate with users of the other devices via a text-based chat.
This app works both with an internet connection and without. Devices must have bluetooth enabled and/or be on the same local network for the app to function properly.
Try it out. If you would like to embed these features into your own application concept, then please visit www.gripwire.com for more information about the Playfield SDK.