That's not the only advantage of having a compatible service either...
One of the coolest parts of the Google TV platform that's running on the Logitech Revue is the ability to search through a huge range of available content, including shows recorded on your DVR. That's only possible though, if you've got a Revue compatible DVR.
If you're a DISH subscriber then there's some good news for you. Not only do you have a compatible DVR, but you'll be able to pick up a much cheaper Revue at a price of $179.
DISH also boasts a seamless transition between DISH Network and Google TV. You'll be able to use the Logitech keyboard controller for not only your Revue, but your DISH content as well. You also have the benefit of a digital setup without the need for an IR blaster or extra wires for internet access.
Source: DISH Network