I can have my Motorola V3 work with my iPaq and the Motorola headset, but not with the laptop via its BT dongle. I got it working once, but next time I tried to use it, it gave me a stream of error messages.
What I *do* like is the way opening the Motorola BT headset immediately establishes the link with the V3. If I'm in the car and the phone rings, I grab the hreadset, flip it open, hang it on my ear, and press the button. And it works, just like that.
The Ericsson HBH didn't do that with any of my SE headsets. Even if I got the pairing working when I set off on a journey, I couldn't be sure it would still be working ten minutes later. It would always drop out after a call and have to be reset.