Status of collab-maint project
Although there's nothing yet in term of infrastructure, people have started to use the "collab-maint" svn repository to maintain packages (see here).
The subversion repository is writable to all members of the collab-maint project AND to all Debian developers (Unix group Debian) AND to all Utnubu members (Unix group utnubu).
Coordination of the development is done via the collab-maint-devel mailing list. Please join, read the design and help out !