I figured out why the iPhone 4S has bad battery life... Or at least my phone. 1) Siri. After disabling this, the battery drain slowed and apps no longer crashed. I have a feeling Siri takes up a lot of processing power and RAM even when not running. 2) Calibration problems. My iPhone's battery drops like crazy until about 40%. When it reaches this point, the drain suddenly slows. By the time it gets to 1%, the phone can run maximum brightness Netflix 3G movies for 45 minutes before shutting off. Both of these are correctable through a software update. I'm looking forward to it.