New iOS API for nearby interactions using bluetooth LE: looking for testers

I'm co-founder of a start-up in SF, we're developing an API that enables you to : - detect if two phones with the same app are nearby, EVEN IF THE APPS ARE IN THE BACKGROUND - exchange data with people around you - send push notifications to users nearby.

Simple examples : - create a leaderboard based on the people you came across - whenever you make your high score, people around you that have the game get a notification with your high score. - exchange virtual currency

We believe a lot can come from this, and we're looking for beta testers !