New to the App World is Adobe Reader for the PlayBook tablet. With Adobe Reader you will be able to view and navigate through PDF files quickly and intuitively, says the description.  The free Adobe Reader app even includes a built-in file manager which provides quick access to all PDF files on the tablet. Check below for features.
PDF Viewing
o High quality & fast PDF viewing enables you to view PDF files as they are
• Navigation
o Touch-based gestures for efficient navigation and zoom in the PDF document
o Page navigator interface for fast navigation with large files
o Hot-spots in the left and right parts of the screen to go to previous or next page
• Organize and Manage
o Built-in file manager provides quick access to all PDF files on the device
Download here
