iPhone 4: Simple Problem Tips

iPhone 4 "Death Grip": Signal/Antenna Issues Yellow Screen Splotches Activation Issues Delayed Shipments Will Not Sync Shattered Screens or Back Panels Battery Packs Proximity Sensor Bumper Incompatibility Slow Wi-Fi iOS 4.0 Poor Battery Life Slow Upgrade Overall Device Slowness Phantom Mail Messages Duplicate Calendar Entries Photo Problems Bluetooth Connection Issues iOS 4.1 Performance improvements Car audio integration issues Hiding Game Center and other "permanent" apps Bluetooth Connectivity Problems Poor battery life