WiFi gets creepy (ant least that's what we'll tell our bosses.)
So there's this tech out there that let's you find people who are near you (using WiFi or course) read a profile on the ones that interest you, and then hook up.
Of course this is obviously a professional tool, and will be extremely valuable in, say, a trade show setting. I'm sure it will be a rare minority who will use it for FLASH DATING™. (You heard it here first)
As for the marketing impact, this is yet another example of the Internet bounding off the desktop and into people's pockets. Things are starting to look very interesting.