iPhone OS 4 is now called as iOS 4 and it’s Golden Master Release Candidate is available for download for paid iPhone Developer only. We’ve been expecting since really long and finally it’s out. This beta release of iOS 4 / iPhone OS 4 is a last beta release from Apple and final release which will graduate beta will be out on 21st June 2010.
This new iPhone OS 4 / iOS 4 can be install on iPhone 3GS and iPhone 3G and anyways iPhone 4 will be shipped with this OS installed in it. But iPhone 2G / classic wont’ be getting an iPhone OS 4 / iOS 4 update this means that Apple stopped supporting their very first iPhone which was a revolutionary product of in it’s kind.
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