In Short

iPhone OS 3.0, code-named Kirkwood, was previewed in April of 2009 and released on June 17, 2009. Tentpole features included in-app purchases for the App Store, push notifications, cut, copy, and paste, pervasive landscape mode, MMS, a Voice Memos app, Spotlight search, video recording, and Voice Control. iPhone OS 3., code-named Northstar, 1shipped on September 9, 2009. iPhone OS 3.2, code-named Wildcat, shipped with the original iPad on April 3, 2010 and remained iPad-only. The final version for iPhone and iPod touch was iPhone OS 3.1.3 released on February 2, 2010, and for iPad, iPhone OS 3.2.2 released on August 11, 2010.