Ok, so after reading through the 67,506 threads on what the update has and hasn't done to people's phones, I am just curious. If this is the same firmware that everyone is downloading, why are there so many different results? I mean, some people are saying their WiFi is shutting down, others are getting errors in iTunes, etc. On the other hand, some people updated and everything is running smooth, if not better. Is it hardware issues? I just don't understand how the same firmware can have so many outcomes. Some of you with more knowledge of how this all works, please enlighten me.