In the guide for signing and building android
http://docs.coronalabs.com/guide/distribution/androidBuild/index.html#TOC
i see that “The traditional Java scheme is to use the reverse-domain format like com.acme, then append the name of a division/product, and finally append the name of the app. For example, com.acme.games.catchafish would be a good package name, assuming you own the acme.com domain name.”
So my question is do we need to actually own the domain name in order to use it ( for example like the domain name above " acme.com")