you can view everything with the 3D Camera...
it just has to be JPG and have a supported resolution.
The transfer App even showed alle Pictures I had on my SD card but I was able to upload only AC:NL stuff...
Its feeshy since since in the last N-Direkt Mini they told that every game with a screenshot function could use this App to upload screenshot yet still I could do it only with AC:NL...
Here http://puu.sh/3K0lS.jpg It does work... but if its only with AC:NL then it is really Lame