It's funny how Nokia is advertising BH-804 to go with N900. I happen to have them both and I have the same kind of problems. The BH-804 gets disconnected all the time. Headset is showing the disconnection, but the N900 still thinks that it's connected. The headset has a neck strap so you don't keep it in your ear all the time. This makes it even harder to notice incoming phone-calls since the phone is silent. Just vibrating.