iOS 4 is now available in iTunes. You must upgrade iTunes to 9.2 to sync with iOS 4.
This update is for the iPhone 3G, iPhone 3GS & newer iPod touches (not 1st Gen). Some older devices will not get all updates such as backgrounding. See details below.
Here’s a list of apps that support running in the background.
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 fixesProducts 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/ipodtouchFor more information about iPhone and iPod touch, go to:
http://www.apple.com/iphone
http://www.apple.com/ipodtouchTo 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/ipodtouchFor information on the security content of this update, please visit this website:
http://support.apple.com/kb/HT1222
Are any dev’s working on bringing iOS 4 to iPhone 2g? It’s obviously not a hardware issue, as the hardware is virtually identical to the 3g, its just Jobs wanting my money…. But my 2g works wonders still and I want iOS 4 (primarily for iBooks)
I have a question I have never had to deal with before. I have a 3gs and want to upgrade to 4. The problem is that my phone is synced with my MacBook pro. The fan died on the mbp, and I wand to start using my p.c. Anyway since it has become my htpc. The obvious problem is the migration of sync. I would like to not lose my emails and contacts (and aps too) when I redo my phone, but it says it will erase everything. So, how would I go about backing up my phone without losing my stuff? I’d appreciate help on this, thanks
just attach your iphone with the new computer. when it shows up in itunes, right click the icon on the left panel and create a backup. The only thing you would loose will be the music & video files.
thank you very much! I kind of thought that I could do that, but I am new to windows (well, recent windows) and am still unsure how that all works…man, I just need to get my mbp fixed :)
anyway thanks again
A huge chunk of these updates are already available on my jailbroken itouch – I’m not so sure I want to upgrade! Will I be able to jailbreak this new OS?
Yes. What iPod touch do you have?
I had been using android for a few months on the Nexus One while I waited to update to iOS 4, now that I got rid of the N1 and am using a 3GS again I will never go back to android.
Apple has nailed multitasking, folders are awesome, overall the only other improvement I could see would be offering the iPhone on more carriers.
Thanks finally for some content. Keep things coming.
I updated to the new 4.0 firmware and i knew that all my jailbroken stuff would go away. However my custom carrier logo still stayed and i dont know how to change it without setting up as a new iphone. if i were to get the new iphone 4 and restore from a back up would it then transfer onto the new iphone? its a dead give away when taking it to apple to have it serviced.
Yes, it stays when restoring from a backup. The way around it is to change it back before you upgrade.
thanks so much doug for taking the time to respond to my question. I know your a busy guy! Now that I’m on the 4.0 software is there a way to change it now?
Is anyone using a Bluetooth keyboard on iPhone 3GS other than Apple’s since updating to iOS 4? And if so, which one?
Just picked up a Microsoft Bluetooth keyboard 6000 from Staples for $50, works great.
Is anyone else having a problem with the screen not displaying during a phone call and/or as the call is ending?? I upgraded to iOS4 and have lost that function, which I’m not sure is a bug or a software issue. Basically, I have to wait for the other person to hang up their phone and for mine to reset afterwards to the home screen. Any help would be greatly appreciated!!