It has been almost a year since geolocation services like Fourspare and Gowalla came into the iPhones of nerds (myself included) that made the annual pilgrimage to Austin Texas for South by Southwest Interactive. The Austin based Gowalla had a significant marketing presence at last year’s conference while Foursquare was stronger out of the gate, being the must have app for SXSWers looking for the hot parties and the who’s who’s of the tech world each night and filling out their badge sashes with the all-night benders that are a SXSW staple. Gowalla picked up steam throughout last year, and now many people (myself and most of my friends) use both apps whenever they remember to check-in somewhere.