I had problems with my Nokia BH-804 handsfree, it completely disconnected from N900 within couple of hours from connecting. It was useless because of that. It's fixed in PR1.2 and finally it works as it should! Though the battery of the BH-804 lasts less than 2 days even if I don't speak a lot. I think it comes out of standby mode everytime I otherwise just use my phone and counts as if I would be speaking. I tried disabling all system sounds so it wouldn't need to play those, but it didn't help. And I can't call by just sayng recipient's name. But I'm happy that the hf mainly works, I just have to charge my hf every night just like I do with the N900...