If it's matches that you want to keep up with, FRC Spyder, a free mobile app for
iOS and
Android devices does a pretty fair job of keeping you updated on matches.
If you have a signal in the arena, that is.
It uses the twitter feeds from the FMS to keep track of scores and matches, and updates very quickly. You may want to look into going that route.
I found it extremely useful during Regionals and Championships, since it also shows the rankings and match times.