Come join us at a special AT&T Mobile App Hackathon that will be focused on UI/UX designers and the like. We’ve lined up a special celebrity guest, Chicago Bears 7-time Pro-Bowl LB Lance Briggs, a self-admitted comic book fanatic. He’s looking for the best designers and devs to build him a mobile app. And where better to find the best than SXSW? Especially when the Official SXSW Hackathon is located smack in the center of the action at the Austin Convention Center for your convenience.