Microsoft realized: You Need to be open to compete in the cloud.
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Microsoft’s magic bullet for Azure: Red Hat Linux
http://www.theregister.co.uk/2012/01/26/windows_azure_money_maker_not/
node.js coming to Windows, Azure with official Microsoft support
http://arstechnica.com/information-technology/2011/06/nodejs-coming-to-windows-azure-with-official-microsoft-support/
BTW: Node.js uses the Google V8 JavaScript engine
http://en.wikipedia.org/wiki/Node.js
http://en.wikipedia.org/wiki/V8_(JavaScript_engine)