Apple fans can’t wait till June, because that is when OS 4.0 is likely to be released. The secrecy surrounding the OS and its features was finally lifted when Apple finally announced what was in store for users from the update.

Multitasking is finally here. Ever since the iPod touch and iPhone came out, users have been craving for it and detractors have been laughing about it. But, finally Apple has put aside its excuses and given the users what they want. However, it is not a true state of multitasking. The apps running in the background have certain vital components running, while other parts go into a sort of hibernation. Double tapping on the Home button will bring up Task Switcher from which the user can select the app to switch to. Apple is touting this as Fast App Switching, but the speed of activation remains to be seen. A Notification system has also been put in place so that the background apps can be in contact with the user.

Apps can finally be grouped into folders, overcoming the screen limitation faced in the devices. The mail app has been updated to accommodate multiple Exchange accounts as well as implementing threaded messages. A new feature called iBooks has been added, which enables you to read books on your device. An improved zoom has been added to the camera; so now you can go up to 5x zoom on you iPhone. A centralized game center has been added as well so that users can connect with their friends to play multiplayer games.

Perhaps the worst addition of all is the iAd advertising module. Basically this means that you are about to experience a new wave of apps that will throw ads in your face like never before.