Zepto.js is a lightweight (2kb) JavaScript framework for mobile WebKit browsers, with a jQuery-compatible syntax.
It aims to help overcoming the most drudge work with a nice API so users can concentrate on getting things done.
Besides the most common functions that can be expected from a JS framework, it has support for touch events and detection of the environment.
Zepto.js is currently in early beta but still very promising.
Requirements: No Requirements
Compatibility: iOS 4+, Android 2.2+, webOS 1.4.5+
Website: http://zeptojs.com/
Download: http://github.com/madrobby/zepto
