I have seen geek radio pairs. The quality wasn't great and they came with many ifs and else. Then there are legal restrictions, atleast here in India. Checkout

I have seen geek radio pairs. The quality wasn't great and they came with many ifs and else. Then there are legal restrictions, atleast here in India. Checkout ThinkGeek. As for the successful commercialization, I think it involves too many components for ordinary people to be able to use it and customer support would be a nightmare.