I'd say ThibG is reversing PC versions of AE formats and I am reversing PC versions of AO formats
I have reversed:
-Cam images
-Type 3 anim files
-Palts
-Paths to some degree..
And currently I'm making a GUI tool to view/edit lvl's and view/replace cam images and view anim files.
I would like to reverse path files to the point where I can figure out how the scripting stuff works, then I would likely create a small proof of concept/demo that allows you to scroll through various cam files with all the scene props in place
But all this stuff is likely a long way a way..