Another headache for Android developers: They have to create apps that can run on more than a thousand different devices, all with different processors, screen sizes, resolutions, and versions of the OS. It also doesn't help that the Android Developers' forums shut down last August, leaving many developers with nowhere to go to find solutions to their problems. Most app developers aren't making any money off Android, and some developers have quit the platform, calling it "unsustainable." While Android is unlikely to run out of developers anytime soon (it still has the largest smartphone market share in the United States and most of the world, after all), we may begin to see a drop in the quality of apps as better developers abandon ship. We users would then have to wade through even more junk before finding an app that's worth downloading.