Startup Idea : Hello! - App: Get social again with minimum effort

Hello is an app, which spontaneously lets you share questions like: „Hello! Who wants to go for a drink?“ or „Hello! Who wants to join a pick nick?“ The trick is, that its more spontaneous than normal social networks like Facebook. Furthermore the „Hello“ can be sent out in a distance around you which you choose and be public, private, or may aim at certain people (youngsters, Nirvana fans, entrepreneurs). It seems simple, but would work because people don’t want to be chained to decisions too long in advance any more, plus its a great way of contacting people in physical reality in a time when the gets harder because everybody is just looking at the computer.