http://agilityjs.com

Agility is an MVC library for browser-side Javascript that lets you write maintainable code without compromising on development speed. It's write less, do more with maintainability.

Features include:

• Painless two-way model-view bindings;
• Implicit controller-event bindings;
• Controller auto-proxying for quick and consistent access to owner object;
• Format and style in-object for "copy-and-paste" reusability;
• Small (<10K) single-library include;
• Compact and efficient syntax, inspired by jQuery;
• Pure prototypal inheritance;
• Strict MVC: core has no additional concepts other than M, V, and C.

Curious to learn more? Visit http://agilityjs.com or fork the project and commit away - contributors are always welcome!