But widespread infrared use never proliferated as some expected it would. But you have to be careful. Some people are thinking we could be talking to satellites and embedding computers in clothing. The killer application is simply replacing cords. Schreck said that having the ability to communicate isn't enough.
Incompatible software poses hurdles.
He posed the example of a Sony audio amplifier that might be able to speak only to other Sony components, not ones made by rivals. In addition to software incompatibility, Bluetooth's main limitation is range. The devices must be within about 30 feet of one another to exchange data. As you enter into the ranges of other computers that are transmitting, you may speak to them, drop off messages, pick up messages, issue commands or receive instructions. Walls and other barriers don't hinder transmission.