That's the declaration attached to every piece of Nexus 7 advertising on the internet. The point Google's trying to get across is that the Nexus 7 is, first and foremost, a media device. Reading, watching, listening, and gaming - those are the use cases Google had in mind when they designed the N7.
The result is that the Nexus 7 is not just a new device, it's a new type of device, at least as far as the Android UI is concerned. When Google set out to design a 7 inch tablet from the ground up, they completely blew up the standard Android tablet conventions.