Does anyone know what is supposed to happen when you send a business card from one Serene to another. A friend tried it and all I received was a text message to say a message was received - no business card.

It is supposed to add it to the Phonebook. Never got that far with mine!

I take it the business card from your friend was sent to you as a text message...

Try 'extract media' in the menu which appears when you press ok when you view the received text message. The content of the business card should then be added to the contact list/phonebook. (I don't think that it matters if it's received from another Serene or from a different make though.)