I'm a comic writer/animator and recently put up a "motion comic" for the iPad that offeres a different approach to comics and shows the potential of this medium!
Here you find it on the AppStore:
Motion Comic SUPERARE for iPad on the iTunes App Store
If you want get a preview of what the comic-experience might be:
If you are interested in comics/graphic novels/animation and want to see whats possible on the iPad you should really check it out!
Feel free to comment/crit it!