After learning about Ubuntu One, do you wish an invitation ?
You may request it here.
but keep in mind that if you have a Launchpad account you have already automatically been added to the invitation queue, so it’s just a matter of waiting. (WRONG !)
If you really want an invitation now, your best choice is to camp out drunk in Canonical’s garden and refuse to leave.
just … lol, getting drunk seems a good idea, should try!