I just installed WM6 (http://forum.xda-developers.com/showthread.php?t=298809) on my 8525 and after pairing I was sitting in the car and the BT connection didn't drop for more than 30 minutes (the 8525 was in standby during that time). It got already much better after installing the 2.06 ROM but now with WM6 it seems to be even more stable. Still no provider or signal strength without JetWare but JetWare seems to be working fine on WM6. The vanilla WM6 ROM doesn't include any Cingular customization, the keyboard and button layout is not a perfect match yet. But once Cingular comes out with their own WM6 ROM, everything might be finally working.