From Makslane Rodrigues:
Game Editor is an open source interactive multimedia tool for game development, with a simple and intuitive interface and a rich set of features. The software allows anyone to develop 2D games for personal computers and mobile devices! The tool is designed to be portable across many different platforms, including Mac, iPhone, iPad, Windows, Pocket PC, Handheld PC, GP2X, Windows Mobile-based Smartphones and Linux. Game editor will let you make games without having to worry about system issues, leaving you with more time to spend on your game design. And more time to design, means better games. No need to worry about Windows, Mac, iPhone, Pocket PC, Smartphones and Linux differences. With Game Editor there are no differences. Only opportunities.