Wtf are you people doing with your phones? I downright abuse mine (think longboarding falls at 50kph with phone flying out of pocket) and it survives all.
Battery life
On average, lifetimes consist of 1000 cycles, although battery performance is rarely specified for more than 500 cycles. This means that batteries of mobile phones, or other hand-held devices in daily use, are not expected to last longer than three years.
I left my 3gs on the roof of my car and it flew into the street when i pulled out of the gas station... intact. My brother in law is a fireman, and his fell out of an aerial ladder 4-5 stories up, and survived with bruises. I dropped a 6 and 6+ from chair height into carpet tile and shattered the screen on the plus, and cracked it on the 6. It's now held together with scotch tape. :)