The new "Debian Reference (v2)" is no more build from wiki. Source will be available in DDP SVN / alioth GIT.
This "Debian Reference (v2)" will focus on things not documented in each package or anywhere else. In other words, big picture issues specific to the Debian user will be the focus. This way all new updates will not require updating documents.
Corresponding content is available at http://people.debian.org/~osamu/pub/po4a/html/ch01.en.html
See DebianReference for more.