When not conflicting with my employment, I contribute what I can to the open source community. Below is a list of projects I have contributed to in recent memory:

• KSVG2, KDOM, KCanvas - Bug fixes, WebCore port (OS X).
• iScrobbler - Total code rewrite for 0.8.
• iEatBrainz - Code re-factoring, many bug fixes, performance.
• Colloquy - Fixed a couple crashers.
• LimeWire - Added Rendezvous support.
• Fractality - Assisted with Mac OS X port, performance.
• Fire - Added Mac OS X Address Book import.
• X-Chat Aqua - tooltips, and speech synthesis.
• Musicbrainz (mb_client) & Bitzi - assisted in Mac OS X ports.

Here is a list of other applications/projects I wrote, prior to joining Apple:

Objective-C, C, and C++

• OpenAG/OpenAG X - first (and fastest!) UNIX/Linux/OS X Audiogalaxy file sharing client. (C++, Cocoa) (11/01-6/02) (sourceforge)
• mod_rendezvous - Apache 1.3.x module which adds Rendezvous support to Mac OS X's built-in web server. (C) (1/03) (tgz)
• mod_SecureTransport - mod_ssl replacement for Apache 1.3.x written using OS X's SecureTransport APIs. (C/C++) (9/02) (sources)
• 3d Go - OpenGL demo which allows playing Go on a 3d board. (OpenGL, Cocoa) (12/02, 12/03) (tgz)
• bitslice - Bitslice DES for the G4 and AltiVec Vector Proecessing Unit. Part of my senior honors project. (C) (1/03-5/03) (pdf)

Java

• Tiger - A little Java applet and presentation showing the Tiger hash algorithm. (11/03) (demo)
• Prim - A little Java applet and C source that visualizes Prim's algorithm. (academic) (11/01) (demo)
• RISK - Multithreaded, network playable (using RMI), team project. (04/00)