iPhone OS 4.0 Finally Allowing Multitasking & Universal Mailbox

The latest update about iPhone OS 4.0 on AppleInsider says that iPhone OS 4.0 will finally allow multitasking so that users can use multiple third party iPhone apps in the background. Along with multitasking another important feature will be Universal mailbox.

Those familiar with the design of iPhone 4.0 said that the user interface will resemble Apple’s desktop Expose feature, in that a key combination — reportedly hitting the Home button twice — will trigger an expose-like interface that brings up a series of icons representing the currently running apps, allowing users to quickly select the one they want to switch to directly. When a selection is made, the iPhone OS zooms out of the Expose task manager and transitions to that app.