The MfE client could just "lie" to the server advertising features which are actually not implemented (remote wipe, locking, etc) but Nokia clearly stated that they do not intend to go this route, and as far as I understand the situation/platform full provisioning is not something we can realisticaly expect.
I love my N900 dearly, it's absolutely the best gadget I had in years, but whoever thinks it's an enterprise phone, is sadly mistaken, and it will never be, and looking back at things I don't think it was ever intended as such. I'm just sorry for the users who bought it for that purpose.