It will take 5 years, as one has to get all right. The fast intuitive UI, the security, the marketing and many other things. Looking at a big company, most people only use:
Why did openoffice not have a wider impact so far? Can a web-based suite win without entering the "comopatability/file format" war?
Have a nice and long weekend. It’s the last two days of the Oktoberfest, so I am preparing for some beer.