Stealthy: Secret Messenger - Chat anonymously with friends & strangers
Noizio - Feeling that the noise of the big city is too much for you to bear?
Roomvine - Chatrooms for real life venues, neighborhoods and events
chatback - Automatically connect to people around you & chat
Jodel - What is Jodel all about? Jodel is the community that shows you what's happening in your area in real-time.
THINK thenlive - Location-based social media