Starting at 3.2.0 release, Jarcade will no longer contain MAME core engine in order to be compliant with MAME license.
I'll separate all android related work from MAME core engine including UI/touch control, opengl rendering, screen preview/Cabinet, video/sound filter, file handling...etc.
There will be a separate MAME engine APK which will be open-source and free to download from Market.
What does this mean to you?
You'll need to download and install MAME APK separately.
Again, this is needed in order to continue supporting the project.
I hope you understand :)