I got this annoying bug with this new update. My phone randomly freeze and my CPU usage jumped to 100%. Very annoying.. Everything seem slower than older firmware. And it drain more battery too.

And as for bluetooth headset, It connect but all distorted just like the previous firmware. But if you connect to Bluetooth and make a call then connect to WiFi the sound became clear and not so much distortion anymore.. But once it's connected it became crap again. Seriously What sort of bullshiit did NOKIA put into the N900 Bluetooth hardware?