Source and compiled project here:
how to use:
1- Put fotos.bin and fotos.psi in folder "\apps\fotos" onto your SD.
2- create folder "\pics" in the root of your SD, and put converted PSI fotos or images in it.
- images should be max 96x64 (but could be smaller)
in the app:
- pressing "A" will start and stop slideshow.
- press left or right to cycle through your images.