Phew! Crazy hour this!
The upgrade for iOS4 will now go through if you try as Apple have made it official (finally!). It was a long wait though.
You can start upgrading your iPhone from here.
If you want direct links, you can follow any of these:
Here are the contents of the Read Me file which is included (via Mac Stories):
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









