This may not be very helpful, but if you keep innovating and tying in the new products, then you would in theory pretty much stay ahead of the game completely.

This may not be very helpful, but if you keep innovating and tying in the new products, then you would in theory pretty much stay ahead of the game completely. That being said, there may be was to encode your resources using various Java obfuscation tools out there. I haven't looked into it too much. My graph theory application Edgy for Android has some nice code that I meant to get around to open-sourcing anyway, but I do understand that I don't have the creative investment it sounds like your project has.