Hi Folks,
I synced my addressbook from my Mac when I got my phone - but when I get a SMS message, only the number appears, not the sender's name - so effectively, most of the time, I have no idea who's sending me the message.
When I get the text, if then add that number to the address book (again) and type in the person's name (again) it will save a duplicate, but this copy actually works properly in SMS messages.