For a while I toyed around with a startup idea that was essentially what geckoboard is doing.
I decided the size of the addressable market is too small to be interesting but one of the revenue ideas I had was to essentially build out a big screen tv-based dashboard product customers could buy from me.
The idea is to ship the customer something that could just be hung on the wall, plugged in, connected to wifi and immediately display the dashboard - just using an off-the-shelf TV and a cheap mini-ITX board or similar plugged in behind the TV.