I've had email correspondence with several people long enough to be able to compare their pre-iPhone letters with their post-iPhone letters. After they buy an iPhone, most of the email is done with the phone. In their pre-iPhone days, their emails were several thoughtful paragraphs. After they get an iPhone, their emails shink in size and they are more like "tweets". Is this typically what happens when people buy an iPhone? ( I myself don't have one.)