My friends have dumbphones that they've had since high school. It still works today, although they are slowly switching to smartphones. I was wondering how long would smartphones (iPhone, Android, Blackberries.. etc) last? Would their life last just as long as dumbphones? Or would the average smartphone last shorter than the average dumbphone? Why and why not? I tried googling this question and on yahoo answers, but i couldn't find an opinion on the matter. I say opinion and not fact, because I don't believe there has been any extensive testing/observation on the subject. *Note: Please don't talk about upgrading phones or debating if Android or iPhone is better. I just want to know your opinion/experience with life expectancy of smartphones.