Apple releases iOS 4.2 for iPad and iPhone

Apple has released the latest version of its mobile operating system, iOS 4.2, available to download for the Apple iPad, iPhone and iPod Touch.

New features include application multi-tasking, unified inbox and Airprint, allowing iOS users to print wirelessly to enabled printers without installing printer drivers.

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Steve Jobs, Apple's CEO, said, "Once again, the iPad with iOS 4.2 will define the target that other tablets will aspire to, but very few, if any, will ever be able to hit."

Jobs added that users can organise applications with "drag-and-drop simplicity". Mail is now a unified inbox with a threaded message view.

Mark Heraghty, managing director at Virgin Media Business, said the new software update boosted the business credentials of Apple's iPad.

"iOS 4.2 marks a real gear-change for the iPad. Its new features mean that the device could become a serious contender to the more conventional PCs in the workplace," he said.

Other iOS 4.2 features include digital media streaming tool, Airplay, and a free Find My iPhone application to help protect personal data. Airprint-enabled printers include HP Photosmart, HP Laserjet Pro and HP Officejet.

Apple launched the first major update to iOS 4 in September this year, addressing Bluetooth, iPhone 3G and proximity issues.

The latest version of Apple's mobile OS can be downloaded by plugging in the device to a Mac or PC and following instructions on iTunes.