When creating an application that will be distributed to more then your self you want to do it the proper way. So far I have looked at how to automate the build, testing and both using Maven, as well as how to sign the apk. What is still outstanding is to run zipalign, a tool in the Android SDK to optimise the package.
To understand what the zipalign tool is you will find Androids documentation here.
It is a simple thing to add the command to the pom file. I am assuming that your project structure looks like the examples build in the previous posts.
In the pom for your application you need to add the following snippet:
This will bind execution of zipalign to the package phase, just after the apk signing, when running install with the sign profile. It will overwrite previous zip aligned file without asking.