Since GW8SP1
they've added a MOBILE PHONE field to the address book, which I can see if I
go into C1, and look at the GENERAL - IDENTIFICATION page for a non-eDir
integrated mailbox (such as an external entity), however if I go into a
regular user, I don't see any place where this new MOBILE PHONE field (or
the other new fields) are located.

Any clues?