The idea is simple but fun. You can create quizes and share it with your friends in real-time using AllJoyn technology. As a host you can create a quiz and "announce" it using AllJoyn. Than people that are close to your location can connect and compete (in order to do this . Each person solves quiz on his Android device. Results are sent back to host so that he can check who was the best !
We have prepared demo application. In future we are planning to expand the concept to include more fun quiz challenges based on proximity-based services !