On June 7th, 2010, at the sold out World Wide Developers Conference, Steve Jobs announced a slew of improvements to the operating system that runs on iPod Touch devices, iPads, and iPhones. Many of those updates were specifically designed for the highlight of his keynote address: the new iPhone 4.

While a few specifications of the new iPhone were previewed during the infamous Gizmodo episode, many of the new features weren’t obvious out of context. Here are a few of the important iPhone 4 and iOS 4 (the new name for the iPhone operating system which runs Apple’s family of mobile devices) improvements…