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Along with the iPad 2, Apple's releasing the final version of iOS 4.3, which features the Nitro Javscript engine from Safari on OS X, new iTunes Home Sharing features that let you play content from desktop iTunes over WiFi, and the updated suite of AirPlay features from the betas -- including the ability for App Store apps to share audio and video. Apple's also finalizing the new option that lets you assign the side switch to either rotation lock or mute, and it's adding Personal Hotspot support. There's also those rumored iOS versions of Photo Booth and FaceTime for the new cameras. It'll be a free download for all iPads, the GSM iPhone 4, the iPhone 3GS and the third- and fourth-gen iPod touch when it's released on March 11. When will it hit the Verizon iPhone 4? We don't know yet.

iOS 4.3 revealed

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