"my four year old child figured out the iPhone's UI on her own. She has never owned a smartphone. She takes nice pictures with the camera and knows about zooming, again figured it out on her own. Recently, while waiting for H1N1 vaccines, i noticed the crowd, almost all the parents who had an iPhone handed it over to their kids to play games and kill the time waiting. If kids can figure out the UI, I do not think it needs lots of explanation." - Nathan Eckenrode