Total agreement with the article's conclusions. I'm an Android developer who once had about six apps listed in the Play Store. But as time passed, maintenance became more and more baroque, and a simple Android version change required me to rewrite all my apps or lose my listings. Like many developers, I gave up.
Then Google announced a decision to disallow sideloading (not clear when this will take effect) and many tablet/cellphone manufacturers intend to disallow bootloader unlocking. If all this happens, it basically closes the Android platform to anything but "official" software releases.
Consider this from my perspective. My first computer was an Apple II in the late 1970s. I could do anything I wanted with it, and I did. But over the decades I've watched the world of software development -- with the exception of personally owned Linux machines -- gradually turn into a walled garden.
What can I say -- it sucks the joy out of programming.
Makes me think about mobile first web apps that just run out of the browser.
Maybe Palm Pre's had it right all along with the html/js based OS in WebOS at that time. Just a little ahead of their time for OS, and missed challenging the iPhone by a bit.