I often use a slim PSP to read guides when I play PS3 games. There are occasions when I'd refer to maps (jpg or some other image formats). The problem I have is although I can view the map images, I don't have a way to mark the maps as I go along. It'd be much more effective if I can, say, cross out locations I've visited in a tedious treasure hunt.
Is there any program on PSP that can edit or annotate image files? Thanks.