Couple of comments. Inflatable football protection devices have been around for decades. I worked with Bryon Donzis the inventor of some those devices - which the device above might be violating several relevant patents. It's interesting the above has come to light so shortly after Bryon's death.
http://www.nytimes.com/2012/01/19/sports/football/byron-donzis-inventor-of-football-flak-jacket-dies-at-79.htmlOn a separate track - the most intelligent way to protect football players is to do away with contact sports - real simple. Unfortunately, it's one of the few successful evolutionary selection challenges we have left to eliminate those incapable of understanding and prioritizing lethal injury risks. I can tell you from looking around - we need more junior and high school football and less protection.
