the final power shift in the smart phones world ?

There may be many reasons for a company that develops products for different platforms to choose one platform as its first environment for innovations. In many cases it is a simple reflection of the company's development environment. But I tend to think that  in the smartphone world, at the stage, preferring to release an innovation into the Android-based smart phones before doing so in the iPhone space, is a revolutionary step. Foursquare's choice to release their recent development "Notifications", for Android based smart phones, after years of iPhone-first, is a clear indication that Android has matured enough,  and iPhone's years of technological dominance, enjoying his first-real-smart-phone-to-be-around status, have come to a clear end.
Very much like other stages at Apple's history, this is a sad stage for the innovative company. Once again, Apple's choices are leading her to a small market share, which not only lacks the cost/benefit edge, but also the technological leadership edge.