TouchCode - JSON, XML parsers and more for iPhone

TouchCode is a repository of iPhone and iPod Touch source code, including TouchJSON, TouchXML and more:
TouchJSON is parser and generator for JSON implemented in Objective C.
TouchXML is a lightweight replacement for Cocoa’s NSXML cluster of classes. It is based on the commonly available Open Source libxml2 library.
TouchHTTPD is a Cocoa HTTP server designed to be embedded in Cocoa applications.