Pošto na listi stoji i Baseband v05.13.04, za očekivati je da je ovo i za iOS 4. MuscleNerd je na Tweeter-u napisao:
Dakle, izgleda da nećemo morati dugo da čekamo. Naravno, ne treba se zaletati i stavljati novi iOS dok zvanično ne izađe alat za jailbreak i unlock. Ako spadate među one koje ne zanima jailbreak i imate sim free telefon, jednostavno skinite poslednju verziju iTunes-a (9.2), uradite backup svega što vam je bitno za čuvanje i posle toga ste spremni za "download and install" novog operativnog sistema. Ovo se odnosi na 3G i 3GS, 2G je poslat u večna lovišta što se tiče podrške, mada sam na netu video da se za 2G pominje pakovanje nekog firmvera koji će biti mešavina 3.1.3 i 4.0.MuscleNerd napisao:@htetard yep...the final 4.0 next week will be an even later version and is confirmed unlockable (possibly iPhone4 too)
Da se podsetimo, od preko 100 novih opcija, iOS 4 donosi sledeće:
- 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
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
● More than 1,500 new developer APIs
● Bug fixes
Dev-Team je pustio iOS 4.0 jailbreak za iPhone 3G:
redsn0w beta has been updated to hacktivate iOS 4.0 for iPhone3G (in addition to jailbreaking the iPhone3G and iPod Touch 2G)