My kids play camppete and love it. I like that I don't have to constantly worry about what they are doing. CampPete offers a choice of Safe Chat or Safe Chat Max, which the player can only use and view words from a preset group. (A nice parental control option)
There is great video messages about football from the head coach, games they can play and it's a whole virtual world so they are always finding something new.
I think it is a great idea to combine football with educational fun. It also teaches them some important stuff about fitness and teamwork. It's not just another mindless video game.