Yes, I understood that something is planned for Android, but I do it for multiple reasons. First I really love the H9, I just want to be able to tweak my presets easily, and I don't have any windows, mac or IOS device. I don't plan to do some commercial stuff, it will be free, lightweight and probably obsolete the day you release the software for android. But still, I find it a cool thing to do, it scratches an itch.
Doing stuff in java will probably allow me to port it easily to Linux as well, and it is an other very cool thing.