I think they should use all nano-technology. Make it incredibly small and look just like a bullet. I don't know how they would do their connections but ....

Seriously though:

Smaller is better. The new Bel Canto amps are some of the best sounding amazingly tiny things. We need to start matching the style of flat panels with our AV solutions. Not everyone can afford to have everything tucked away in a closet and controlled by a Crestron unit (or even Control4).

If it has to be big... RF remote!