I got my compiling setup all done again. It's actually even better than before, I can use an emulator that launches in 20 seconds instead of 2 minutes. It's actually usable now. Using the emulator, I can reproduce two major bugs I couldn't before: crashing when opening saves, and backspace deleting two characters.

I'll look into these and see what I can do. The first is probably something in TPT, the second is probably something in the SDL port. I will need to set up debugging tools, no idea how to debug this.

Edit: Looks like the crash when opening saves on some architectures is Newtonian Gravity related. I guess I didn't disable gravity enough ... still causing issues.
Edit2: Fixed crash when opening saves

Made more changes to the java code in the SDL wrapper.

I fixed the bugs when exiting the keyboard with the back soft key. Previously it would take two presses to exit the keyboard (the first exits the keyboard and isn't seen by the java code and the second exits the black text entry area). I added a separate key listener to handle the back key properly. It also seems to fix the bug where it would erroneously send even more back key events, bringing you back to the main tpt screen.

Also something more understandable, I enabled auto correct in all textboxes except the console and the keyboard that comes up when you hold the console key.