Many companies are now building could computing services, from Salesforce's CRM system to Google Apps and Amazon's EC2 infrastructure for virtual hosting of machines. Yet many of these companies, in divorcing desktop based applications, have created cloud-service equivalents that are inferior in performance and usability. Apple's elegant solution is - once again - in making this technology accessible for the masses. You don't have to treat the cloud as another harddisk, website or application. It just simplifies your existing desktop applications to make moving between them more seamless.