Hi les_garden! I can confirm severe bluetooth problems with a car bluetooth speaker that I bought today. The sound is so bad that one can hardly hear what the other person is saying. There is also a lot of acoustic feedback going on. This car speaker i a SE product (HCB-108), but it should work anyway and it does with earlier Nokia phones. So, there is definetly something terribly wrong with the bluetooth support in the N900. I hope this is mainly just a software issue.