Using an aux cable between your stereo and the InCharge Home BT receiver, music can be Bluetoothed from your iPhone/iPod Touch/iPad, while it's happily charging away at the same time.
The two products—the InCharge Home BT and InCharge Auto BT—cost $US80 each and both have wired connections to either your car or home stereo, plus USB ports for charging your iDevice. If you're finished charging, you can yank out the USB cable and just stream your ditties using Bluetooth. XtremeMac has listed them as "coming soon" on its website, so keep an eye out. [InCharge Home BT and InCharge Auto BT]