We just informed you about the official confirmation of iPhone 4.0 by Apple and look what has just popped up over at Engadget. They have been tipped by a developer from PixelCUBE Studios – a firm which holds the number one spot in iTunes list of free app, who has spotted not one or two, but three difference versions of iPhone OS 4.x running on different iDevices: iPhone 4.1, 4.0.1 and 4.0.

iPhone 4.1 and iPhone 4.0.1

These versions were discovered by application’s Pinch Media analytics data. If iPhone 4.1 and 4.0.1 indeed exits, expect them to be a minor update only and Apple might release them one by one in Q3 and Q4 of 2010 respectively. The iPhone OS 4.0 version, which going to be unveiled on Thursday, April 8th, certainly denotes a major release version and we can expect it to ship with the next-generation iPhone model which is expected to be released in summer, at the annual WWDC 2010. Nothing much is known about about the features that the new 4.0 firmware is going to offer, but we can expect it to add a lot of new features, including multitasking. [via Engadget]

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