Apps for Android
- put it here: https://developer.mozilla.org/en-US/docs/Apps/Apps_for_Android
Android is one of many platforms that can run Open Web Apps. You need to install Firefox Aurora for Android (which is pre-beta) to access Open Web App capabilities on Android at this time (September 2012).
There are no other special instructions for developing Web apps for Android. If you want your app to run well on Android, keep in mind that a smartphone is a small-screen device and this must be handled properly by your app if you want the app to be usable. A best practice for doing this is to use responsive Web design. [link http://en.wikipedia.org/wiki/Responsive_Web_Design]
There can be device APIs available on an Android smartphone that are not available on desktop OSes. For example, orientation, geolocation, vibration, and so on.
The apps developer documentation you find on MDN applies to apps that you want to develop for Android.
You can design an app to work best on a small device like a phone, or you can design one that will run well on all platforms.
If you are developing apps for the Firfox OS and do not yet have a FFxOS device, testing the app on an Android phone can be helpful.