From the Keynote tab, you can view and download each presentation as a Keynote file, PDF, or in PowerPoint format.

ENGADGET: Apple iCloud and iWork beta for iOS hands-on Hands-on

While both the Mobile Digital Scribe and ZPen would be more palatable if they captured natively into a more standard file format such as JPEG or PDF, both do a solid job of recording pages of notes and line drawings.

ENGADGET: Switched On: More options for getting from scribble to screen

Booktype can format for a series of standard book sizes, then spit out several file types, including pdf, epub, mobi, odt and html files.

FORBES: Booktype: Book Collaboration Made Easy