iOS 4 Software Update

This update contains over 100 new features, including the following:

• Multitasking support for third-party apps*

    - Multitasking user interface to quickly move between

          apps

    - Support for audio apps to play in the background

    - VoIP apps can receive and maintain calls in the

          background or when device is asleep

    - Apps can monitor location and take action while

          running in the background

    - Alerts and messages can be pushed to apps using

          push and local notifications

    - Apps can complete tasks in the background

• Folders to better organize and access apps

• Home screen Wallpaper*

• Mail improvements

    - Unified inbox to view emails from all accounts in one

          place

    - Fast inbox switching to quickly switch between

          different email accounts

    - Threaded messages to view multiple emails from the

          same conversation

    - Attachments can be opened with compatible third-

          party apps

    - Search results can now be filed or deleted

    - Option to select size of photo attachments

    - Messages in the Outbox can be edited or deleted

• Support for iBooks and iBookstore (available from the

      App Store)

• Photo and Camera improvements

    - 5x digital zoom when taking a photo**

    - Tap to focus during video recording**

    - Ability to sync Faces from iPhoto

    - Geo-tagged photos appear on a map in Photos

• Ability to create and edit playlists on device

• Calendar invitations can be sent and accepted wirelessly

      with supported CalDAV servers

• Support for MobileMe calendar sharing

• Suggestions and recent searches appear during a web

      search

• Searchable SMS/MMS messages**

• Spotlight search can be continued on web and Wikipedia

• Enhanced location privacy

    - New Location Services icon in the status bar

    - Indication of which apps have requested your location

          in the last 24 hours

    - Location Services can be toggled on or off for

          individual apps

• Automatic spellcheck

• Support for Bluetooth keyboards*

• iPod out to navigate music, podcasts and audiobooks

      through an iPod interface with compatible cars

• Support for iTunes gifting of apps

• Wireless notes syncing with IMAP-based mail accounts

• Persistent WiFi connection to receive push notifications*

• New setting for turning on/off cellular data only**

• Option to display the character count while composing

      new SMS/MMS**

• Visual Voicemail messages can be kept locally even if

      they have been deleted from the server**

• Control to lock portrait orientation*

• Audio playback controls for iPod and third-party audio

      apps*

• New languages, dictionaries and keyboards

• Accessibility enhancements*

• Bluetooth improvements

• Better data protection using the device passcode as an

      encryption key* (Requires full restore.)

• Support for third-party Mobile Device Management

      solutions

• Enables wireless distribution of enterprise applications

• Exchange Server 2010 compatibility

• Support for multiple Exchange ActiveSync accounts

• Support for Juniper Junos Pulse and Cisco AnyConnect

      SSL VPN apps (available from the App Store)

• More than 1,500 new developer APIs

• Bug fixes

Products compatible with this software update:

• iPhone 3G

• iPhone 3GS

• iPhone 4

• iPod touch 2nd generation

• iPod touch 3rd generation (late 2009 models with 32GB

      or 64GB)

* Requires iPhone 3GS, iPhone 4, and iPod touch 3rd generation.

** Requires iPhone 3G, iPhone 3GS, and iPhone 4. SMS/MMS messaging and Visual Voicemail require support from your wireless carrier.

For feature descriptions and complete instructions, see the user guides for iPhone and iPod touch at:

http://support.apple.com/manuals/iphone

http://support.apple.com/manuals/ipodtouch

For more information about iPhone and iPod touch, go to:

http://www.apple.com/iphone

http://www.apple.com/ipodtouch

To troubleshoot your iPhone or iPod touch, or to view additional support information go to:

http://www.apple.com/support/iphone

http://www.apple.com/support/ipodtouch

For information on the security content of this update, please visit this website:   

http://support.apple.com/kb/HT1222