Hi, i have update last time my PR 1.2 files , then i have found Problem.
If u have Bluetooth in use , then is the wlan connection go down, a listen of radio stream is no more posible. To see this problem , can u try to downlad any file with wget or check your wlan Router conection status. (iwconfig view no true output). I have try play mp3 from local device or Internet radiostream, in both :

BT on but Not in Use = ~700 Kb
BT on and in Use = ~20 Kb.

I have update my n900 to PR 1,3 , but nothing is change, same problem.

Any one can Confirm this Problem?

AFAIK bluetooth uses about the same radio frequencies WiFi uses. The clash generated might be prevented by lowering down speed, but I'm not sure of the technicals. It's not a software bug anyway.

IIRC they both use the same antenna.

It does not matter whether directly from the N900 local Mp3 or Internet Radio Stream over Wlan. It has to work 8 weeks. Im sure !

People complained a2dp didn't work when wifi was in use, so I guess they increased the priority of bluetooth and lowered wifi priority (they both use the same frequencies and the same antenna).

Any know which module/file control priority of BT and Wlan?
then i downgrade it.