I have the same fading in and out problem. It only started up after the first couple of days though, very strange. I didn't have this problem before, it just kind of started all of a sudden. However, the speaker quality and headphone quality are still fine. Could be a hardware issue or maybe from some faulty programs? I did install a few programs over the last couple of days, some from the development repository. Any ideas? Did the flashing work for anyone else? So far one person did it successfully and one didn't.
Thanks,
Kham

Edit:I meant to say it only started up a few days ago. Not " after the first couple of days". It could have been moisture introduction into he speaker port. Did anyone else recall being in a moist environment, i.e. rain, near the sink, or maybe getting out of the shower then taking on the phone? I think this could be the root of the problem. Also, you guys think Nokia will cover it?