While the fact Playbook has original pdf reader from Adobe makes me happy, the discovery of the feature-less program cooled very quickly my initial enthusiasm...
The reader crashes randomly when trying to navigate through larger files: 50+pages. Sometimes it takes just a flip of a couple pages to find myself dropped back to Playbook homescreen, sometimes just a bit longer. Without the proper navigation options it is plain PITA to try and find the last page before the crash.
Further on, please add the options to manually control the rotation of the pages. I'm finding myself often turning my head instead as the playbook will rotate the pages which are saved sideways.
Looking forward for update.