Kamaelia is a project that aims to allow the BBC and others to create and test open protocols for large scale streaming. Substantial subsystems include a core concurrency subsystem and the beginnings of an RTSP/RTP streaming server. Existing functionality includes a complete single threaded, coroutine-based concurrency framework (Axon), a generic TCP client and server framework that allows protocols to be trivially created, a number of example protocols, and an Ogg Vorbis decoding subsystem for client site testing (libvorbissimple).