I'm a very long time Windows Phone fan. My first WP device was a pre-release device that Microsoft gave me under NDA about six months before the first phones were released for sale. I love everything about it and am baffled and saddened by the poor reception it has received from the rest of the world. I've written a number of apps for it, which have proved reasonably successful, and bought half a dozen different devices over the last five years.
But if Microsoft can't fix the "app gap" with Windows 10, then even I will have reached the end of my patience with the platform. I am sick beyond words with the frustration of seeing apps left right and centre, from games to productivity apps, that are not available on my phone. I would love to be able to just blindly assume that any app I see or hear about will be available to me. Instead I pretty much assume that nothing will be available. I reply in embarrassed tones whenever someone recommends an app to me, telling me that it won't be available for my phone. I'm rarely wrong.
So for me, a WinPho fanboy for years, this is the final chance for Microsoft to get it right. Otherwise I guess I'll resign myself to investigating the various Android devices that are out there. It'll break my heart, but I don't think I've any patience left to carry on with the platform the way it is.