• Runs Apple's iOS 5 operating system

  • Available on three carriers: AT&T, Verizon, Sprint

  • Available on three storage sizes: 16GB, 32GB, 64GB

  • Easiest compatibility with iTunes, Apple ecosystem, and products

  • Form factor: One 3.5-inch screen (on the smaller size by today's standards)

  • Interface: Easy to use, but not very customizable. Some hidden features

  • Key features: 8-megapixel camera, Face Time video chat, Siri voice assistant

  • Next big release: iPhone 5, release date unknown, but speculated for summer 2012

  • Cons: Very "one size fits all" - locked down and not very customizable, no Flash