Iceberg is an integrated packaging environment (IPE) that allows you to create packages or metapackages conforming to the Mac OS X specifications.
With Iceberg, you can quickly create your installation packages using a graphic user interface similar to your favorite development tools.
Iceberg can also be useful for Administrators who want to gather in a metapackage numerous packages for remote distribution via Apple Remote Desktop.
Iceberg source code is available under the BSD license.
Aquamacs is a Mac-like distribution of the powerful Emacs text editor. It looks and behaves like a Mac program - even though it's still GNU Emacs with all the extensibility that millions have come to appreciate.
Emacs is a text editor of legendary power and configurability, but it also has an enormously complex interface. Aquamacs tames the Emacs tiger: you get Apple shortcuts (in addition to the Emacs ones), nice fonts, one file per window (if wanted), international input methods, Apple Help manuals and more. Aquamacs comes with a range of modes for various markup and programming languages: HTML, C/C++, Java, Python, Perl, AppleScript, Tcl, XML, R (S)... These modes have extra functions for the languages, including excellent syntax highlighting. You can even use Aquamacs to read news and e-mail, just like any Emacs.
Download Aquamacs Emacs
Amnesty Hypercube is a free desktop widget platform designed to release Google Gadgets and other web widgets (such as Flash games and video) from the confines of the browser.
Already using Dashboard? Any widget in Amnesty Hypercube can be pushed into your Dashboard with one click, which makes it a perfect extension to Tiger's native widget environment.
And to help you manage the largest widget library available, Amnesty Hypercube automatically imports web widgets from over 150 providers.
Download Amnesty Hypercube
Shiira is a web browser based on Web Kit and written in Cocoa. The goal of the Shiira Project is to create a browser that is better and more useful than Safari. All source code used in this software is publicly available.