Apple unveiled its next-generation iPhone operating system in California. The details of the all new operating system have been unveiled in a press event at the company's headquarters.

The developers can get the new operating system, iPhone OS 4 soon. Company officials have anticipated that within a week time it will be released to the developers. By using this latest addition the developers can access to calendar, photo library, still image and video data.

Most importantly it includes various features that help the device to run its apps faster. However, the gadget experts believe that the new arrival from Apple will undoubtedly catch the attention of the market. The operating system is expected to support multitasking of apps in the device.

Apple Chief Executive, Steve Jobs has anticipated that the company will also capture a remarkable share in the OS market. However he has also expressed his concerns over the poor battery life of multitasking devices. He has informed that Apple is working on to implement multitasking of third-party apps without wasting battery life.