Remotely universal
In 1992, I had this idea that someone ought to make a palm-sized device for transporting data from household appliances to computers and back again. That way I could use my computer to configure, say, my thermostat. I thought about patenting this idea and actually got as far as thinking about it.
We could now do it right. We could even use our Palms or cellphones for the GUI. Or why not have a dedicated Universal Remote that can talk to all of the electronic objects in our lives? It’s a million dollar idea, I tell you! Go ahead and build it, and then send me a million dollars when you’re done. Really. I trust you.