iPhone OS 4.0

The announcement of the much awaited update on the iPhone OS was announced in the iPhone OS 4.0 keynote yesterday by Steve and the gangs.
As usual, the rumours on Apple devices are most of the time true.
There were only 7 major items that were highlighted by Apple during the keynote:

• Multi-tasking (only works on 3GS)
• Folders
• Enhanced mail app
• iBooks
• Enterprise
• Game Center
• iAd

I think we know what multi-tasking means here. I just hope that they are actually doing it much better than other mobile OSes does.
One thing to note is that Multi-tasking feature is already available for Jailbroken phones with 2 apps hand-in-hand. They are "Backgrounder" which allows you to run apps in the background and "Pro-Switcher" which has the effect like Safari or Palm Pre (card-style).

Apps running in the background with "Backgrounder" has a small badge icon at the bottom left.

Card-style switching from one app to another.





















Video speaks more than pictures :)


Just to note again, the multi-tasking feature only works with iPhone 3GS models. Too bad for the older models probably due to the limitation of the older hardware on the previous iPhones.

Next item I would like to talk about is the Folders feature. Again, this is similar feature to "Categories" on the Jailbroken iPhones.

This is how it looks like in the iPhone OS 4.0.


As for the new possibility of changing wallpaper on the 4.0, it was already very much possible via Jailbroken iPhones with the app call "Winterboard". In fact, the Winterboard could change the entire theme of your iPhone.
Below is the example of the Winterboard on the Jailbroken iPhone.

The above are the several noticeable new features on the iPhone OS 4.0. Apple announced that the OS 4.0 will only be available in Summer.

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