1st March 2010 03:18
Last year, Foursquare was called the break-out mobile app of the conference by more than one tech journalist.
This year, a new contender has appeared - Austin's native Gowalla. And Brightkite is still hanging on to the LBS community, if only by a thread of loyal users - but they still offer more features than some of their better-known competitors.
Which do you use now? And when your attention is at a premium during…