While Canonical Ltd. clearly cannot violate the Ubuntu trademark in a legal sense, it is in very bad taste to use it in a way that is forbidden by the trademark policy that all other parties must follow.
There is enough confusion already that services such as Launchpad and Landscape are developed by and strongly related to the Ubuntu community. Creating another such service - but this time with 'Ubuntu' in the name, reinforcing those incorrect ideas - is not a good idea.
While Canonical Ltd. clearly cannot violate the Ubuntu trademark in a legal sense, it is in very bad taste to use it in a way that is forbidden by the trademark policy that all other parties must follow.
There is enough confusion already that services such as Launchpad and Landscape are developed by and strongly related to the Ubuntu community. Creating another such service - but this time with 'Ubuntu' in the name, reinforcing those incorrect ideas - is not a good idea.