Debian Live Initiative
As Daniel Baumann reported in his blog, the Debian Live Initiative has been started with a basic website and wiki at http://live.debian.net and a mailing list at Debian Unofficial. The project aims to create a fully-Debian Live CD building system, possibly based on the Casper system used in Ubuntu. It will be 100% official Debian, run on as many archs as possible and be easily modified through a configuration file.
I've already suggested sharing at least some of the effort with Progeny's Componentized Linux project, which uses config files and the git SCC system to create a component-based Debian CD at the end. CL could benefit from Live output and Debian Live could reuse some of the config file reading and I'm sure a lot more.