This article is a waste of time
Office compatibility is an issue because of competition, and the fact that different offerings want to give new features and capabilities, that don't necessarily breed interoperability. Also your comments on Windows 8 lack any actual logic aside from regurgitating generally non-insightful cynicism that is rampant on the topic already. Your solution to single sign-on is to give up?
Please don't ever bother to submit an application to me.