It does not work like that Canonical is going right now to release ubuntu one server software as open source.
This gives unfortunately some trouble with the law in different countries.
And this makes it difficult to inplamation of ubuntu and ubuntu one in those eg State public schools.
See eg this (Danish Data Protection Agency: Case about Google docs in the Danish state public school)
Therefore I propose that Canonical releases the ubuntu one server software under a partnership program.
Which gives the right to host ubuntu one on servers in a country.
Canonical can then make some minumus demands on hardware and bandwidth, etc. In these data centers