“By now, the pattern in Apple’s major iOS updates ought to be pretty clear. Every significant version change has brought at least one very important systemwide update that addresses a shortcoming, along with a handful of feature enhancements and other tweaks. In version 2.0, that was the App Store; in 3.0, it was cut, copy, and paste functionality; in iOS 4, we finally got multitasking. In iOS 5, that role is played by improved notifications.”
