Tap4 is a connect4 browser based multiplayer game. The game data is stored in a mysql database table, and passed around via AJAX.
The code is a bit messy as I created this as an experiment. Online at http://tap4.net
Jet Slalom type game for WebOS using AJAX/Canvas/Mojo. Coded to give a range of code examples such as: using HTML5 Canvas elements; fending off the garbage collector; managing Mojo lists and widgets; global/local leaderboards; and mobile advertising.