Apple on Wednesday released iOS 4.3 for the iPhone, iPad and iPod touch, bringing new features like Personal Hotspot, AirPlay support for third-party apps, and JavaScript Web browsing speeds twice as fast.
iOS 4.3 was initially scheduled to launch on Friday, alongside the iPad 2, as per an official announcement from Apple last week. But Apple decided to pull the trigger two days early, and less than a week after the golden master was issued to developers.
One of the highlights of iOS 4.3 is improved performance with JavaScript in the mobile Safari Web browser. Apple has ported the Nitro engine from Mac OS X, bringing JavaScript speeds twice as fast to the iPhone and iPad.
Another major feature is Personal Hotspot, which allows iPhone 4 users to share their 3G data connection over Wi-Fi. Personal Hotspot will work with supporting carriers -- including AT&T -- with the appropriate monthly data plan.
The Personal Hotspot feature was first introduced on the Verizon CDMA iPhone 4 introduced in February. But while Verizon users had early access to Personal Hotspot, those customers will have to wait for iOS 4.3, as the CDMA iPhone 4 has a different baseband chip than its GSM counterpart.
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