I am intrigued by this growing trend of "co-viewing" or "second screen" mobile apps: These are apps designed to be used while you're watching or doing something else, either something like enjoying a live concert or watching a movie or TV show. We've seen a few of these before, but VH1 has released an app called VH1 Co-Star that's designed exactly for this type of experience.
Mashable has a pretty good write up -- while you watch the show itself, the app feeds you tweets and other information that goe
