A quick follow-up on my location-based dating idea from Noah Mercer:

“As an FYI, the special purpose dating devices you describe already exist. They’re used in (where else?) Japan, and young folks will enter some sort of personal information. When their device gets within 10 ft (+/-) of a device with compatible information it will flash and buzz, prompting the user to track down someone in the area who also has a buzzing, flashing device. I think that NTT DoCoMo also offers a cell phone based version of this. Why, why, why can’t we have location information available for our cell phones?”

This seems like it would be a killer app for someone focused on selling cell phones to teens and young adults, like Virgin Mobile. How about it Mr. Branson? You could have a service that actually *helps* people lose their virginity.