MooPix isn't a slideshow, it's a way for you to access your public Flickr photos without doing PHP, Ruby, or Python situps. What you do with it is your perrogative.
Using mootools v1.11, this javascript gallery and slideshow system allows you to have simple and smooth (cross-fading...) image galleries, slideshows, showcases and other cool stuff on your website... Unlike other systems out there, JonDesign's SmoothGallery is designed from the ground up to be standard compliant: You can feed it from any document, using custom css selectors.