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Ray Ozzie has just resigned as 'Microsofts' chief software architect and has recently put a blog on his site about the future of PC's. Interestingly he's titled it 'The Post PC World'. Microsoft announced that they have sold 240 million copies of Win 7, but not how many are actively used. They thank you for the spectacular profit this gave them, but now realise they are going down the wrong track and would like to get into the new 'Mobile device' world. Ray started this off with 'Windows Phone 7' ( Nothing in common with Windows or Mobile 6 ), this is a completely new OS, and will require new applications. The look and feel is similar to the 'Zune' media player and will be a big part of their future strategy along with 'Azure' online office applications. Changing the 'Desktop' on an old inefficient and insecure system is no longer possible with today's new competition. Suing companies by using general patents such as 'e-mailing to a PC' will only drive manufacturers to countries such as China and India where the patents have to be more specific and not in general use. The PC (personal computer) is rapidly becoming obsolete. New systems include Apples iPad, Googles Android, Googles ChromeOs, Nokias Meego, Blackberrys Playbook and Hewlet Packards WebOs. These are all loosely based on Unix. I don't know what Phone 7 is based on. As these are minimal Operating systems that don't require Virus checking bootup should be only a few seconds.