Despite begin a unique, key marketing feature of Snow Leopard, Apple has decided to open the code behind Grand Central Dispatch under the liberal Apache 2.0 license. Snow Leopard's new Grand Central Dispatch feature, which serves as a system-wide mechanism for managing parallel task execution across multiple processor cores for developers, involves multiple components in the operating system.
Gobby is a free collaborative editor based on libobby, a library which provides synced document buffers. It supports multiple documents in one session and a multi-user chat. It runs on Microsoft Windows, Mac OS X, Linux and other Unix-like platforms.