Ubuntu One server software is closed source. The code which integrates with Amazon ads is closed source. Launchpad was closed source for some time. The Ubuntu s

Ubuntu One server software is closed source. The code which integrates with Amazon ads is closed source. Launchpad was closed source for some time. The Ubuntu sign-on service is closed source. I wasn't only referring to their proprietary work - their own code is often extremely difficult to consume by outsiders.