Wireless Peripherals?

Now that wireless technologies are more-or-less a household name, BSDevil wonders if it's possible to use such technologies (ie Bluetooth, 802.11, etc) as a replacement for those situations where long ungainly cables are usually called for: "My laptop and printer are placed such a way that running a cable from one to the other would just plain suck (too long if not direct, if direct then in the way, etc.) and because both are about a year old. I want (to make, if need be) a little box that I plug into my Parellel port on the laptop and one that I plug into the port on the back of my Printer, and have them talk and print and be merry. Power could either be directly off the port (best) or from a rechargable battery inside the thing that is used to power the system when transmitting, and recharges when not - like a big capacitor - off the power of the Port. Does it exist, and if not, any ideas on making one?" And if such can work for printers, why not other peripherals as well?