I walked by the downstairs bathroom last week and had to quickly run and grab my camera because this was too hilarious and so typical of my boys - Eli probably had been playing a game on the iPhone, then had to go to the bathroom, so he took it in with him to continue the game. Then Charlie trailed along carrying his blankie and wanting to watch what his brother was doing.
I promise this is not a regular occurrence, nor do I let my kids play on the phone all day long. And I clean my phone on a regular basis. :)