Playing With Checkins API

Many people like to use geo checkin services such as Foursquare, Gowalla, and Brightkite. Bigger companies such as Google, Facebook, and Twitter also join the game by launching their own geo checkin services.
Some developers who want to use all the services but don't want to open 6 application for that purpose create multicheckins.com. The developer uses jquerymobile to create the UI.