Zune Thoughts: Microsoft Creating iPAQ...er Zune Car Dock?

"The newly minted patent covers a portable audio device that can be docked and/or integrated into a car stereo. The union would allow the devices to transfer media and data back-and-forth. The guts of the patent boil down to this key point: A car stereo including a docking station into which an off-the-shelf handheld computer can be docked..."

Crunchgear has been reporting on some Microsoft patent documents referencing a car stereo with portable device docking functionality. While the above sketch up shows a device much more resembling an iPAQ than a Zune, could these documents hint at some future functionality coming down the road for Zune?