In fact, a GoPro support member received a “Dear John” letter not too long ago, and this once again reiterates the fact that talk is cheap, and that action speaks louder than words. If one were to head over to the GoPro website, then one would be able to see that Windows Phone is no longer listed as a location where one will be able to download and install the GoPro app.
Of course, one should bear in mind that this is not entirely an issue with Windows Phone, as GoPro is not the only player in the industry, and with the kind of competition that they are facing at the moment, it looks like they are shifting their resources to shore up and improve the other areas in which it thinks is more critical to its survival.