Apple has released the latest version of its mobile operating system (OS), iOS 4.3, available to download for the Apple iPad, iPhone and iPod Touch.
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New features include Personal Hotspot, which allows iPhone 4 devices to use the 3G cellular data connection from a different device when there is no wi-fi connection via tethering.
Other previously introduced features include wireless printing from iPhone, iPad or iPod touch devices and multitasking for applications. Apple also fixed some bugs in Windows and OS X systems.
Apple released a beta version of the operating system to developers in January.
The update is available via Apple's app store, iTunes.