According to the November '11 report by Appcelerator, Windows Phone has overtaken RIM to become the third platform with regards to developer interest. What could be the factors that have boosted interest for the platform? The superb developer relationship Microsoft has in place is bound to be attractive, not to mention Nokia's announced dedication to the app craftsmen.
Android is sitting comfortably in second, while iOS (both iPhone and iPad) is the reigning champion for developers. It will be interesting to see how HTML mobile web, as well as Windows Phone, increases with hardware acceleration and how Metro UI will take off across Microsoft's product line.
On an off note, do try to ignore the fact that the 68% and 66% lines are above the 70% marker.