iPhone OS 4.0 To Include Multitasking, Lots Of UI Changes, Only For 3G & 3GS?

Boy Genius Report claims to have some details about iPhone OS 4.0 from “a guy.” According to them, 4.0 will include multitasking support, a new user interface “to make navigating through the OS easier and more efficient,” OS-wide multi-touch gestures, and “some brand new syncing ability for the contacts and calendar applications.” Their source also notes that iPhone OS 4.0 will only be available for the iPhone 3G and 3GS, but it should “put them ahead in the smartphone market because it will make them more like full-fledged computers.”

BGR doesn’t say whether the new OS will be shown at the January 27th event, but we’re assuming that we’ll be seeing a preview then.

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