iPhone OS 4

Here're highlights of what you can expect with iPhone OS 4. Unfortunately, it won't be available to devices older than the iPhone 3GS and iPod touch.

* Multitasking.
* Spell check (like on the iPad).
* Bluetooth keyboard support (again, on the iPad).
* User-defined wallpaper (a jailbreak favorite).
* Tap to focus when recording video, just like with photos, and a 5x digital zoom for the camera.
* Playlist creation and nested playlists.
* App folders for sorting apps! You can even put an app folder in the dock.
* Enhanced Mail! You can have a merged inbox view, switch between inboxes quickly, and sync to more than one Exchange account. There's also threaded messaging (at last!) and in-app attachment viewing.
* iBooks, just like on iPad, only smaller. You can wirelessly sync books between platforms, a la Kindle.
* Enterprise features, including remote device management and wireless app distribution.
* Game Center. It's like Xbox Live, but for iPhone games. Includes achievements, leaderboards, and match making. It will be available as a "developer preview," and out for consumers later this year.

Read more at Engadget!


Engadget has also uploaded an OS 4 video. From what I see, I imagine the multi-tasker function to work just like the Alt+Tab on a Windows OS. Check out the video below:


Engadget is updating their hands-on experience here.