I bought this guy on a deals site and use it for my laptop plugged into the big TV. It does a great job on a variety of surfaces (couch, carpet etc) from way across the room. I'm now thinking that a wireless keyboard would be nice... Does anyone think it would be possible to get a Microsoft Wireless Keyboard using the same specs that would let me get by with just one dongle? Or is there some magic between the peripheral and the dongle that would prevent such sharing? Am I wasting my time and...