After having no bluetooth issues with my previous iPhone 3GS and iPhone 4, my new iPhone 4S seems to have issues. During a call, the person on the other end sounds garbled every so often (i.e. every 30 seconds or so). It happens with both my Plantronics earpiece and my Acura TL's bluetooth. It also happens with my wife's earpiece. My old iPhone 4 and 3GS worked perfectly with this headset and the car and still do. Thus, it isn't related to the ear pieces or the car. The iPhone 4S is the only common denominator. Called Apple support who had no suggestions that applied - they basically could only read off a screen of troubleshooting applicable to pairing problems. This Bluetooth issue happens no matter where I am so it isn't related to a specific area like just my house either. Is anyone else experiencing this issue with these iPhone 4S?