At the desktop front, microsoft has the edge with having to only include seamless online cap[abilities to make their products sync with the webware age. Microsoft has been at the receiving end when it comes to patching and covering up major security issues. Google on the other hand has never been so much under the security radar. And appealing to the enterprises is all about the security game as well. If Google can prove that their processes and applications are better equipped at ensuring security, Microsoft's real down fall begins.