Instructions on how to jailbreak and unlock your iPhone 3G on iOS 4.2.1 firmware using RedSn0w for Windows. This tutorial will show you how to upgrade your baseband if needed for unlocking.
Shipment volumes for existing iPhone models are expected to decrease ahead of a new iPhone expected later this year; however, total iPhone shipments are expected to reach 20-25 million in 3Q12.
Consumer Reports has ranked the Samsung Galaxy S III, LG Optimus G, Motorola Droid Razr HD, and Motorola Droid Razr Maxx HD as better smartphones than the iPhone 5.