Sony today (in time for CES 2001) announced a new prototype "InfoStick module" (same form factor and connectors as memory stick) which provides a Bluetooth communications module for compatible hardware. In theory (in future digital cameras) a module such as this would allow your camera to communicate directly with (say) a digital wallet type device carried on your belt, your mobile phone or even a pair of Bluetooth video goggles, the possibilties are endless...