The Programm should enable to input the place and time when and in where the user will be. And to search similar users by city and time. It should work through facebook.
After download the user synchronize with facebook connect, and adds data about new trip
The user can search people there. The results show who is going to the place according to search parameters. First the user see friends, than friends of friends, then others.
After that there should be possibility to connect to the person through facebook or sms or email.

If you have programming experience with IPhone/Android which include Facebook API - please enclose in message, if you think you can do it - please enclose your solution proposition.

P.s. No responses without sum/timing/offer will be considered