My question is that my Iphone g4 doesn’t allow reasonable range and other issues with Bluetooth headset. I tried with Apple Bluetooth headset which worked perfectly with Iphone 3G and Iphone 3G-S. Issue, you can have Iphone 4 in shirt or pant pocket and Bluetooth will disconnect. Also, you can have Iphone 4 inside car and close the door while standing right outside the door and Bluetooth disconnects. This never happened with previous models including Iphone 3G-S with IOS 4 installed. Please help.