Now might be a good time to mention that Firefox on Android has a built-in marketplace which allows you to install most FirefoxOS Apps as full Android Apps, wit

Now might be a good time to mention that Firefox on Android has a built-in marketplace which allows you to install most FirefoxOS Apps as full Android Apps, with access to most of the device APIs. Unfortunately, I find that most of the apps aren't very good at all (and in no way is it a replacement for Google Play) but it's something interesting to keep an eye on.