I have a Sony P800 PDA/Phone, but have never been able to get OS 10.2's AddressBook to dial it directly via Bluetooth (something Sony t68 owners have been able to do for a long while).
Low and behold, I installed Panther this morning, paired my P800, and tried to dial a phone number from AddressBook...and it worked!
VERY COOL! I love being able to quickly type in a name and dial the phone without having to touch it. FINALLY! THANK YOU APPLE!