This is the second year that AT&T has run what it calls Big Mobile on Campus Challenge. Essentially students develop mobile apps and AT&T owns them.

The winner or winning team gets $10K. Runners up get $5K and devices of their choice. This is very smart because AT&T gets lots of free/cheap development for mobile apps by a very mobile-savvy population. The company gets good PR and the winning app(s) may actually be useful and capable of implementation.

 Here's video of last year's "Rover" local-mobile app winner: