I love my iPhone but I am very disappointed with the quality control (or lack of it) at Apple. I am on my second phone (first one had major weak signal issues). Now my new phone seems to shut itself off every second day. Several of my friends had problems with brand new phones like touch screens that stop responding, defective batteries, clusters of dead pixels in the middle of the screen, etc. The sad thing is, it is not just the iPhones either. It went through 3 Macbooks before I finally got one that worked. The first one would shut itself off, the second one was DOA, and the 3rd was a charm.
I wish Apple would clean up their act a bit...