Apple doesn't think so. Their own iPad apps - the iWork suite, iMovie and Garageband are very capable in producing some pretty neat content. iWork and iMovie

Apple doesn't think so. Their own iPad apps - the iWork suite, iMovie and Garageband are very capable in producing some pretty neat content. iWork and iMovie are available not just for the iPad but for the iPhone as well. I've found the iPhone version of iMovie to be very competent for casual movie editing - proving that content creation can be form-factor agnostic.