Cydia is a front-end for Debian APT, a mature packaging solution for Unix systems, designed to be a fully-featured replacement for Installer.

Sources: The sources editor hasn't been integrated yet, but should list:

ModMyiFone (modmyifone.com)
BigBoss (thebigboss.org)
Ste (blog.psmxy.org)
ZodTTD (zodttd.com)
Telesphoreo (telesphoreo.org)

For help with either Cydia or iPhone/Java, please join the IRC channel #iphone on irc.saurik.com.

A big thanks goes out to a bunch of people who have helped on this project. A menu option will be dedicated to listing them when I next reorganize this screen.

ModMyiFone is the first AppTapp repository to fully support Debian APT. Now, from either Cydia or the command line using apt-get, you can install any of the amazing packages they host: everything from Pianist to my personal favorite, Garf. Have fun!

Java, complete with support for graphical applications, has been made possible through the development of a Java/Objective-C bridge named JocStrap. The package "iPhone/Java" contains example applications, with source code. There is also a mailing list.

Through the magic of PyObjC, you can now write graphical iPhone applications using Python. Install the iPhone/Python package to get a simple example application (with source code). A special thank you goes out to Dave Arter for providing most of the example code. There is also a mailing list you can join.

Many people have claimed that Ruby is totally broken on the iPhone. Until now, those people were right. A lot of hard work went into tracking down a bug in Ruby's garbage collector, allowing the "RubyGems" package you will find in this repository to work ~90% (not 100% as apparently it still segment faults occasionally if you do something really complicated with it, like Metasploit... any takers? the previous Ruby version didn't even support function calls correctly).