Ha! Ha! Ha! Ha! Ha!
As of this writing, there are NO (as in ZERO) Windows Vista certified Bluetooth products on the market.
I recently spent the day with a new USB Bluetooth adapter vainly attempting to get it to work with Vista. Hours later after much research it appears that Vista isn't very well behaved with Bluetooth.
I plugged the same USB Bluetooth adapter into an XP PC. Wham! Worked flawlessly!
So what else is broken in this shoddy OS? Did Microsoft outsource the entire Windows Vista project to a bunch of losers from India or what?