I have my iphone, ipad, and 9 year old son's ipod touch all under 1 apple ID so I can control what he puts on the ipod. Is there a way to not have all his game apps go onto my devices after syncing with itunes, and vice versa?
When you connect each device to iTunes go under the app tab and select which apps you want for that device. Each device has a different backup. Your iTunes account has nothing to do what apps you have on each device.