Cannot create a gmail contact without an email address

I attempted to create a gmail contact for a friend of mine who doesn't have an email address (yes, there are a few people left who don't have email addresses). When I click on 'add contact' the 'Add Contact' window closes, but the contact is not saved. Since gmail's contact list is still in it's infancy I'm not too concerned -- I hoping that they'll get their contact list up to the same level as their email interface.