In the WPS? Yes, though if the images are any size at all you'll quickly run out of buffer space for them. Look through the timer section of the wps guide in the wiki, and in some gallery somewhere (gigabeat?) there's a "Dancing Megaman" that cycles through images. Also, PHKTape cycles images to make the reels look like they're rotating. See how that's done and modify it to slideshow your images, but if something doesn't work it could be because you're running out of buffer memory for the pictures.