Best Buy has copies: http://www.bestbuy.com/site/Adobe+Photoshop+Lightroom+3+-+Mac/Windows/ 1221845.p?id=1218237047831&skuId=1221845&st=lightroom&lp=3&cp=1 only 299.00. You could almost buy a Win 7 Laptop for that!
Please see http://forums.adobe.com/message/4131900
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