Fortune-telling is risky stuff. I personally try to avoid doing it, and don't put much stock in others' prognostications.
It will be interesting to revisit all these predictions in a year, and two years, and three years.
But of course, that's rarely done, because it's embarrassing. :)
No fortunetelling We are talking about the technical merits of Android as compared to WP 7 here, not how well WP7 will do in the market, and the general prognosis has been that WP7 is a better product than Android is.