Gowalla to launch "Groupon" style rewards at SXSW

We all know "checking in" to certain places using location-based mobile services like Foursquare and Gowalla can have some real life benefits.

GPS killer app: stalking, er, I mean flirting

Location based services are going to be hotter than a junebug dancing on a fat man's grill. Flirtatious dating site hottie is hitting the "droid."