IPhone OS 2

iPhone OS 2 is the second version of iPhone OS (iOS), which was released on 11 July 2008.

App Store
The App Store has been added, which allows for 3rd party applications to be installed.

Camera and Photos

 * Photos can now be saved from Mail and Safari.
 * Photos taken in the Camera app are now geotagged.
 * The ability to take screenshots has been added.
 * SVG image support has been added.

Mail

 * Added support for:
 * BCC
 * Microsoft Exchange accounts
 * Microsoft Office and iWork attachments
 * Multiple emails can now be deleted at once.
 * The ability to select an outgoing email has been added.

Calendar
The Calendar app now supports multiple calendars.

Contacts

 * Contacts can now be imported from a SIM card.
 * The search functionality has been improved.

Maps
iPhone OS 2.2 adds support for Google Street View, as well as the ability to display the address of a dropped pin.

Calculator
A scientific calculator mode has been added, which can be accessed by rotating the device into landscape mode.

Language and input

 * Added support for Norwegian, Swedish, Danish, Finnish, Polish, Dutch, Korean, Brazilian, and Portuguese languages.
 * iPhone OS 2.2 adds Emoji support.

Connectivity

 * Wi-Fi can now be enabled while in Airplane Mode.
 * WPA2 and 802.1X support has been added.