What is ios3?

iOS 3 was the third version of Apple's mobile operating system, released on June 17, 2009. It was the first iOS version to support the original iPhone and the iPhone 3G. Some of the notable features of iOS 3 included:

1. Cut, copy, and paste functionality.

2. Landscape mode for all core apps.

3. Spotlight search, which allowed users to search across multiple apps and content types.

4. Voice memo recording.

5. A new, more streamlined user interface for the App Store.

6. Push notifications for third-party apps.

7. MMS messaging.

8. MobileMe services, including Find My iPhone.

Overall, iOS 3 was a significant upgrade that introduced several key features that would become core features of future iOS versions. However, it was also criticized for some bugs and performance issues, particularly on older devices.