For your own as well his well being keep him away from games and TV as long as you are capable. It is crack to kids. The real world will provide him with far more variation in Hand Eye coordination than a game can/will ever deliver. Walking is just as import. Take time to read to him. No matter how hard you try to keep games away from him he will be exposed to them regardless. In no time he will master the trivial skills necessary to master game play and keyboards. I am not anti games but I currently have a 9 year old so I know what you are thinking. Read, Read Read Read to him, far more important. The structure of our language models our thinking, Failure to master basic communication skills will be far more devastating. Consider this, he will probably not even have to use a keyboard when he is an adult because they will be obsolete.
Good luck