TokTok is a mobile service that helps you find out who of your Facebook friends are closeby and to get in touch with them - in both your virtual and real life!
"15 people, 5 days, 1 product" We had our kickoff on Monday and still working fulltime (and partnight;-) on the product. We hope to be done this Friday. Stay tuned and make sure to check out TokTok once it's ready! http://www.toktok.me