I'm not sure when Ambient Devices released it, but they've got a cool chipset you can buy and provide data to arbitrary devices over radio waves. I've always loved this company! They build analog things that leverage digital data; the perfect mix. It's sad to me that we're sitting around looking at text, graphics, video, on LCD displays, with totally unnatural keyboards under our hands. We're in a much better place once all these computers (in the traditional, CPU, display, peripheral devices sense of the word) are out of our lives and we get what we want, blended in with life. Ambient gets this.
Dare to dream.