Hello everyone,
A new bugfix release (3.0.2) of the Android mode is available through the Contributions Manager. The next release on the CM will bring big changes and improvements (among them, built-in support for live wallpapers, watch faces, and cardboard). You can give this new functionality a try right now by downloading the most recent beta package from here, and installing it manually.
Refer to the Processing for Android website for additional info and tutorials, and please report bugs in the issues section of the GitHub repository.
Thanks!
Andres