I am going out on a limb here, but I think he was responding to you accusations of him being a child...
Three years is a long time, in terms of using a phone. I wouldn't call that getting bored with your phone after a short time has passed.
I know, I was just saying in general.
Some people get bored with their phones or toys in general within months or weeks.
I was mentioning that I didnt, there is plenty of firmware updates and improvements since the iphone came out and tons of good quality Apps to keep one busy.