I like the idea but only for replays or a small split screen in the bottom or something for a short time. A whole game wouldn't be to good I'm thinking. The NHL has the "Ref Cam" on their helmets sometimes but they only use it sparingly and not in many games.
When is the NFL going to put a camera on the endzone pylon perpendicular to the goal line so Refs, and fans can confirm the player "broke the plane"? I swear everytime they have the replay there its always at some funky angle or not a good view to make the correct call. Cmon, NFL, its not that difficult right?!