A C++ library for reading & writing Fudge, a structured message format that's similar to JSON in capabilities, but uses a more efficient binary encoding.
A helper script for use in porting Python code to Ruby.
A lightweight persistent key/value store with multi-version concurrency control.
A fast 'n' easy persistent storage library for Cocoa apps.
A high-level cryptography API for Mac OS X and iPhone.
Mooseyard Networking library: Cocoa utilities, including a generic TCP server/client, plus the reference (well, the only) implementation of the message-oriented BLIP protocol.
Objective-C utility code for Cocoa programming on Mac OS X.
A GUI client app for the Mercurial version-control system. Written for Mac OS X, in Objective-C.
A simple peer-to-peer chat room iPhone app by Peter Bakhyryev; modified by me (snej) to use the MYNetwork library and BLIP protocol.
A small framework for building board and card games, using Apple's Core Animation. Runs on iPhone and Mac OS X 10.5+.