Foursquare takes on Comic-Con with a Superman badge

Comic-Con is obviously a very popular event among foursquare’s geek-heavy user population. Last night’s Comic-Con preview unlocked the Super Swarm badge (more than 250 users checked in at once) and today when users checked in, they received a special surprise: a Comic-Con 2010 badge. The unlock text reads:

Welcome to Metropolis, errr San Diego. You’ve just scored the Superman badge! Now show this at the WB booth to pick up some free swag, while supplies last. (Hint: stay away from the Kryptonite Cupcakes)

In addition to providing swag for badge-holders, Warner Brothers has promoted their booth with more than 50 tips in and around Comic-Con, like this one on the main Comic-Con venue page:

Play new Warner Bros. games like the Lord of the Rings: Aragon’s Quest; F.E.A.R. 3 and Mortal Kombat at the WB Booth.

LOOPZ is also taking advantage of foursquare to promote their booth. In addition to adding a “major” special to their booth’s venue page, they’ve added tips offering a free gift for every checkin and a free shirt for people who check in on three separate days.