Originally Posted by rugmankc
I am 99.9% certain you have to have the plus account. Then you can do exactly what Serpentine009 said.
I am 100% certain that you do not have to have plus account to do everything that Serpentine009 said.
The main problem I have is with the fact that you have NO real control over how the synching works. If you had put a contact into your blackberry and that was already in your addressbook you can very easily end with a duplicate as you cannot match them. It also might incorrectly match people. If you do not have 2 way sync'ing chosen the only information that will be sync'ed is that which is in the one you are sync'ing from. In other words if you add a phone number or address to Yahoo that is blank for that contact on your blackberry and are sync'ing from your blackberry then that portion of the yahoo contact will not be looked at or sync'd.