As part of the Nokia Developer Summit, the widely publicised Nokia Hackathon ended with a victory for a Mexican designer, with Rocket, a social location widget that will be featured on the front screen of the Nokia N97. It's not known which social network this is compatible with. There's an extract from the press release below.

"Guerrero's victory was announced after a 24-hour Nokia Hackathon event where an elite group of world-class developers raced to build the shortlisted apps live and against the clock. The contest held in association with Forum Nokia's Calling All Innovators competition took place between 28-29 April in Monaco at the Nokia Developer Summit. Not only does Guerrero win a brand new Nokia N97 pre-loaded with his widget on the home screen, the application will also have prime status on the homepage of the new Ovi Store, which launches soon, and will be free to download for Nokia N97 owners in all Ovi Store launch countries.