iOS 4.3 officially released

By George Wong on 03/09/2011 11:00 PDT

iOS 4.3

The day you’ve been waiting for is here – the iOS 4.3 update has arrived and is now available for your iOS devices. Like with the previous iOS update, some devices will be stuck and won’t be receiving this update. The devices capable of updating to iOS 4.3 are the iPad, iPhone 3GS, iPhone 4 (Verizon and AT&T), iPod Touch 3^rd Generation and iPod Touch 4^th Generation. The new features the update brings are: wireless hotspot capabilities (only for iPhone 4), Safari browser speed improvements, AirPlay improvements, Home Sharing capabilities and more – head here for a detailed list. To update your iOS device, just run iTunes and plug your device into your computer. iTunes should prompt you to update if you haven’t updated it yet.

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iOS was once upon a time called iPhone OS, or "operating system", which is the software that provides all the basic device functionality and is the interface between the hardware and applications. iOS was introduced with the iPhone on January 9 2007, and it was originally not intended to be programmable by third parties. Steve Jobs had envisioned that developers could create Web Apps that would run in the browser. This changed less than one year after when the iPhone SDK (software development kit) was introduced in October 2007. Today, hundreds of thousands of apps have been created for this platform. iPhone OS became iOS on June 2010. Interestingly, both iPhone and iOS were former trademarks of Cisco, that Apple now uses under a license.

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