Gobuntu is an upcoming official derivative of the Ubuntu operating system, aiming to provide a distribution consisting entirely of free software.
You can try it out, as well:- http://cdimage.ubuntu.com/gobuntu/daily/current/
Yesterday someone asked me why gNewSense doesn’t use Launchpad. Simple! Launchpad is not free software. When it is, I suspect the gNewSense developers will use it in some form. Maybe if the software is good enough, we will run a Launchpad installation for the GNU project, or maybe we will all use the main one for public stuff and run internal installations for private things.
Canonical are starting to release pieces of Launchpad as free software, however. Which is a good thing.