Apple on Monday announced that it will formally introduce the next version of its mobile operating system, iPhone OS 4.0, at a special event scheduled for this week, April 8.

In March AppleInsider reported that Apple plans to add full multitasking support in the forthcoming release of the 4.0 software update. Sources said that the company has developed a "full-on solution" to allow multitasking of third-party applications on the App Store.