aussie mateI've discovered a few things in the last few days!
Your suggestion may be closer to reality then you thought.
BlueWatch already can see a dongle if you use the pairing option.
If you have Windows 7 you can set it up to use both a Bluetooth dongle and speaker setup.
This may have been an issue but as soon as the headset goes out of range it will auto switch to your original mic and speaker setup.
Once you comeback into range with your headset Windows auto switches it back! Cool for getting annoucements outside.
The issue then becomes the microphone volume ajustment it sets it to 0, at least here it does.
once I find some code to adjust that control you'll be set.
Of coarse that is if you have Windows 7. If you have Vista all isn't lost as you can auto switch microphones with the
WSR macros.
I haven't tested this yet but it looks promising.
If you only have XP you'll have to wait till BVC gets that option and
BlueWatch can talk to BVC.
WRS Macros will give a big boost to all thirdparty software not just
BlueWatch!