Originally Posted by ectoplasm
Not sure what features you're looking for, but I think when people talk about PDFs on the Fire being better, they're comparing it to the e-ink Kindles. I can tell you that the Fire is dramatically better than my Kindle 3, because of the zooming, panning, color, and speed.
I guess you'd have to ask Amazon what they mean by 'desktop class' PDF viewing. I'd at least like TOC, and have some sort of cropping that would stick from page to page (like Mantano or ezPDF).