I believe many people would argue that 'computing in the 21st century happens on the phone' not on the desktop or laptop for a large fraction of the population. And because of that, it would seem the worlds leading software vendor would want to participate there. So persistence here is not perceived as throwing away billions for a small minority, so much as investing billions so that you're a credible alternative to tens if not hundreds of millions of users. That keeps your company tuned up in the most dominant software delivery mechanism of our time and avoids overall company death by irrelevancy.