Apple Thoughts: iOS 4.0, What You Need to Know

"iOS 4 (previously iOS 4, iOS 4.0) continues Apple's relentless yearly mobile OS cycle. If 2007 was the mainstreaming of the multitouch user interface, 2008 all about the app store, and 2009 filling in the feature list, then iOS 4 promises to be... well, that's why we're here."

Since iOS 4.0 is due to be released on Monday, here is a pretty thorough walk through of the operating system, outlining all of the enhancements as well as what hasn't changed from the current version. One of my favorite revisions? The Calendar app, where you will be able to select any combination of calendars to display on your iPhone as well as allowing apps access to the calendar functions on the iPhone. Long overdue. What are some of your favorite additions/revisions?