Not available yet but so nice that is probably worth the heads-up.
One field that allows uploading images and then displays them in a slide show, either fade or scroll effect (by pattern). It uses jquery tcycle (jquery is included in Moodle and tcycle is is a minimalist jQuery slideshow plugin by malsup (http://jquery.malsup.com/cycle2/tcycle/) included in the field plugin). The setting of the Dataform to do that is fairly minimal.
Tried to snapshot the fading between the parrot and butterfly. In this particular illustration, the Dataform is set to display inline on the frontpage.