Welcome Max89,
sadly I can tell you nothing about the AT commands. At least for now. I see no reason why you can't use the power regulator, but maybe someone knows some..
@retrofly:
I tried the toshiba BT stack driver, but it won't install on my system so i'm searching for a workaround.
Correct me if i'm wrong. Default win software opens two serial ports for the bluetooth device, one IN and one OUT. The only problem why I can't use the Arduino serial monitor is because it can monitor only one serial port. But if i had software which can read two ports simultaneously, this would be no problem. Am I right?
I have a feeling that in Linux serial communication might be easier...Maybe anyone has experience with it?