Forum rules - please read before posting, it can save you a lot of time.
I have uploaded a new build with viewport transformation removed. It works for me using the demo project. Can you give it a try?
It might be an SDL issue. I have updated the library to the latest snapshot, and the behaviour is still not correct - but something seems to have changed... Needs more investigation.
Yes, that would be too easy You will need to build the Android Java wrapper with your modifications (including your data files). I need to check in the native libraries of the current build (or you might unpack it from the .apk), and then you should try to rebuild the "SDLActivity" Java part. You will need the Android SDK for that, and install the required dependencies for Android 2.3.3 (API level 10). Once you can build the Java part, adjusting it to fit your needs is not that difficult.