Those registry changes will not work, they will reset once a device is connected.

SuperDave and I were working on this (I should say more SuperDave on the file end, me on the try it and reporting on the status) and he thinks it's related to the Bluetooth using a file that was created by Samsung called HSCFG.dll. It's different than the default bluetooth file that Microsoft uses in their stack: btagsvc.dll. This file does the switching. Do not contact SuperDave asking him questions, we quit working on it and he's waiting to get his i760 before he's going to continue to try.

But it seems to be in those files and the way that Samsung is connecting and paring the devices...

__________________
-Michael
Need help setting up your i730/i830 or other WM2003/WM5 Phone, as well as the other hacks I have done, check out the MRailing Guides and Links