Blackberry and Bluetooth
 

Are bluetooth enabled blackberry's compatable with 2005 X5 4.4?

The Blackberry 7100 is known to be compatible, although the address book needs to be manually transmitted to the vehicle - see http://www.xoutpost.com/html.php?file=bmw_bt_phones.htm

The Nextel 7520 works fine (sans addressbook) with the ULF 522, have been using it for ~2 months. You have a choice of setting the ULF as a trusted device (autoconnect) or not, the default, in which case the BB will prompt each time whether you want to accept the connection.