Ubuntu is a Debian based, community developed Linux distribution sponsored by
Canonical.  Ubuntu has made more modifications and feature additions on top of
Debian than any other Debian derived product so far.  Modifications do not stop
at the package level, however, Canonical has copied and since expanded and
modified the whole Debian organizational infrastructure and created a new
community around Ubuntu from scratch.  

Compared to Debian, Ubuntu takes new approaches in release management, base
system development, package maintenance, automatic package building and
archiving, package maintainer/community member selection and community steering
and management.  While some of those changes have been the subject of heated
discussions, most of them seem still opaque to most Debian Developers or
outsiders.  This talk will present the Ubuntu development and community models
and lay out their similarities and differences compared to Debian.