IPhone OS 3

iPhone OS 3 is the third version of iPhone OS (iOS), which was released on June 17, 2009, this was the last version to be labeled as "iPhone OS", before being labeled to "iOS".

Cut, copy, and paste
System-wide "Cut - Copy - Paste" has been added for text and images.

Home screen

 * Spotlight search has been added. It can be accessed by swiping to the right from the home screen.
 * The home screen now allows up to 11 pages of apps. (180 apps in total.)

Voice Memos
Voice Memos has been added, which can be used to create audio recordings.

Messages
Messages has been updated to support MMS.

Camera and Photos

 * The Camera app was updated to support video-recording.
 * The ability to select multiple photos at once in the Photos app has been added.

Voice Control
The Voice Control feature has been added.

Find My iPhone
Find My iPhone support has been added, which allows users who have purchased a MobileMe subscription to remotely track and erase their iPhone.

Developers

 * App developers can now access third-party accessories attached to the iPhone.
 * Support for in-app purchases has been added.