The main reason I purchased the Playbook was that it had Adobe Reader X. I wanted to view my eComics from marchansenstuff.com. Adobe Reader X on my MAC and PC computers open these files just fine. When I select them on the Playbook, I get an error message. Unbelievable! This Blackberry product deserves better support from Adobe. How about other users with mission critical business AES-256.pdf documents? Please upgrade.