I just found a major issue with the automatic sprite animation sheet creation on export
Theres a sprite in the project with this image split into 56 frames
<img src="https://dl.dropbox.com/u/53012532/WallTest2.png" border="0" />
after its exported its sheet looks like this
<img src="https://dl.dropbox.com/u/53012532/wall3d-sheet0.png" border="0" />
it looks like it automatically adds some padding between frames and that completely ruins the effect of the walls in my project which uses the frames to create a pseudo 3d effect