The iio Engine
A new open source framework for HTML5 applications
Integrated with Box2d
Part way through my journey of creating this engine, I realized that other developers who were interested building in web apps might also find the framework useful, so I decided to put together a website dedicated to the distribution and documentation of the project: http://iioengine.com/
This engine is, and always will be completely open source and free to use, extend, and re-purpose.
I will continue working to extend the engine and I welcome anyone who would like get on board with the project. iio still has a long way to go component-wise (the next adventure is a sound library!), but it is already an extremely good starting point for simple 2d games and custom engines.
One of the coolest aspects of iio is its integration with Box2D. The iio Engine provides a graphics engine attachment and application base to Box2DWeb, and is coded to make working with B2D objects easier than ever. check out the Box2D Docs page for more details.
Post here or on the iio Forums if you have any questions, comments, or feedback. The iio Engine will always be a work in progress, but I will always share that progress with online developer communities.
BTW - I've been using gamedev.net for a long time to find inspiration and solutions, so I chose this forum to release in first. You guys are the first to hear about iio!