I searched and searched but can't find anything on this subject. Bluetooth GPS devices are very small, and could be an option for runners like myself to be able to get the GPS data to the watch instead of carrying the iphone when running. These BT GPS devices are literally the size of a keyless remote for your car and could easily fit in a pocket when running. So, my question is will Apple allow these 3rd party BT GPS devices to work with the Apple watch? This would solve the problem of a power hungry GPS chip inside the watch, and not having to carry the iphone.