Four-year-old operating systems

At today's WWDC Keynote, Tim Cook mentioned that a lot of Android users are still using a version of the OS from 4 years ago. I can't believe that. Can you imagine using iOS from 4 years ago? For fun, I looked up what the big features of iOS 4 were. I couldn't believe that some of these things weren't introduced until 4.0:

  • It was the first version called iOS instead of iPhone OS
  • Unified mail inbox (!)
  • Spellcheck
  • Voice control (pre-Siri)
  • Customizable wallpaper
  • Multitasking (finally!)

Follow the title to relive the summer of 2010 and see a full walkthrough.