Perhaps this is something like Dropbox. It does one thing, very well - create folders that live everywhere and can be shared with anyone. There are some storage limitations, but for the most part people can pass documents back and forth remotely quickly and easily; being able to work on them on the tablet only helps.
More work than play:
ESPN are doing some nice complimentary apps - you're watching the game at the bar or home on the big screen and you're monitoring the stats or your fantasy football team live; or chatting to your buddies
Or there's an ABC app ( for Glee ?) I think that listens to the audio and gives you content on what you're watching.