If I may interject with my own problem,
I've been having audio quality issues with BT headsets using WM6. I flashed using the latest kitchen and the audio over my various handsfree and headset devices is full of static/crackle. I've tried three diff radio versions (1.12, 1.40, 1.41) and each had no affect on correcting this problem. If I flash back to the original WM5 load, well - everything is fine - but that defeats the whole purpose of upgrading the Apache, doesn't it
Any advice/insight into this problem is greatly appreciated.