Znap is a small network audio mixing daemon. It can load streams supported by the fmod library (Ogg MP3, WAV, etc.) and mix them together. It can be controlled via TCP or XML-RPC. It supports playlists and has an SQLite backend. Future releases will provide scheduling capabilities, making it able to act like radio automation software.
exchange-away is a script that assists with the migration of users between mail servers with IMAP support. It can migrate one or many folders at a time, delete mail from the old server, auto-subscribe user to their folders on the new server, deal with different usernames and passwords on the old and new servers, and throttle itself to reduce server load.
libmls is a library that can be used to measure the frequency response of a loudspeaker or a room using your computer and an ordinary soundcard. It can perform both MLS (Maximum Length Sequence) and Sinus sweep measurements. It supports ALSA, OSS, and the sound system used in Windows.
knuckle cracker includes a tool that compares two binary files and generates human-readable (and writable) patch scripts signed with MD5. It features smart string/binary recognition. Non-printable string portions are presented in C- like escaping style ("\x20\7\r\n"). It also features a utility that applies such a patch.