[dpryan]

This is an open problem. The dream scenario is to utilize power line communications, but that technology has its own set of issues.

[watmough]

I already use Ethernet over household wiring to get data from the uverse router to my wife's office. I think it's 200 Mbs, but whatever, it's completely transparent to use. It may be the only completely foolproof piece of hardware in the house.