After installing Windows Vista Ultimate on one of my PC two weeks ago, I finally have time to play around with Bluetooth. To my amazement, no additional feature (profile, Bluetooth-speak). The menu, the tab, and the icon are too identical. The only difference is the Vista skin which is in aero style. I'm not quite sure if Microsoft Bluetooth stack on Vista is of version 2.0+EDR because when I tried it once for a PAN connection, the status window said the rate was 1.0 Mbps.

All in all, I still need another (third-party) Bluetooth stack for Windows Vista to use my Bluetooth headset and other fancy applications.