RailsInstaller for Windows

Backport Holo theme from Android 4.2 to 2.1+

Android Unit Testing Framework

A RSS reader library to fetch a RSS feed from the web and parse it to workable objects

A jQuery plugin that enables HTML5 placeholder behavior for browsers that aren’t trying hard enough yet

Give your JS App some Backbone with Models, Views, Collections, and Events

evented I/O for v8 javascript

JavaScript page locker

Distributed and fault-tolerant realtime computation: stream processing, continuous computation, distributed RPC, and more

JSON in JavaScript

The earliest versions of the very first c compiler known to exist in the wild written by the late legend himself dmr.

The official jQuery user interface library.