is there any way to use the bluetooth in my car when making/receiving skype calls? cuz i can't figure it out...i can use my regular bluetooth headset to make/receive skype calls and regular voice calls, and i can use the car to make/receive voice calls, but i can't use the car bluetooth to make/receive skype calls (sound just goes through the phone)

I have got exactly the same problem; I can use my handsfree bluetooth device in my car making normal phone calls. But when I make a Skype call via 3G my N900 shows "Headseth" but does not use it. Or maybe it is using a different bluetooth feature (e.g. for audio) that my in car system does not understand (my in car bluetooth system does not support bluetooth audi, but only phone).