I would add the additional thing that if you have a big green button and a big red button, the toddler is not going to have the same good/bad stop/go associations with those colours. A big red 'exit the app and go spend money' button is going to get pushed just as much as the 'go back to the game green button'.<p>From the article:<p><i>"Finally, here are some gripes with iOS:<p>•Home button needs an off switch. I need some way to disable the home button or make it harder to access during app play, e.g. a triple click or some other morse code sequence.<p>•Need a way to hide videos. Eli knows how to get to the videos. He can find the icon no matter where I put it. I can disable videos through restrictions, but that doesn't really solve the problem. I would really like to be able to hide this icon like you can do for system icons on Windows. Another option would be to put the restriction on the icon itself and force me to enter the password when clicking on it. Come to think of it, this would work for the home button too.
"</i><p>I very much disagree with the first point. It makes your app a 'trap' that even an adult might not be able to figure out how to exit from. This is a stunningly, spectacularly bad idea and violates the whole "the user is in control" illusion. If the easiest way to exit your app is to reboot the machine ... then your app blows, <i>and you suck</i>.<p>If the kid is pressing the home button a lot, and this annoys you, then you have to think about your goals. Toddlers like to bounce from one thing to another a lot, and they <i>love</i> to be in control (because they have so little control of everything else in their lives).<p>We think of toddlers having short attention spans, but sometimes the converse is true, toddlers can also have <i>amazingly</i> long attention spans - the classic example being the kid who sits there and bangs a pot with a wooden spoon for endless hours.<p>If the toddler is exiting too often from the app, maybe the problem is not with the home button, maybe your app is just not engaging enough.<p>I saw (for instance) one toddler who could spend hours making the angry birds fly the wrong way. When they do they make indignant squawks, and he loved that. <i>Without fail</i> any adult who watched him doing that would quickly become bored and try to show him how to 'do it right'.<p>---<p>With respect to the videos, I'm not sure what the problem is, is it bandwidth? Is it easy access to age inappropriate content?