Formatting is fine. PDF was designed for that very purpose anyway. Zooming and generally navigating a PDF is a huge pain. Screen refreshes are slow. Much like

Formatting is fine. PDF was designed for that very purpose anyway. Zooming and generally navigating a PDF is a huge pain. Screen refreshes are slow. Much like navigating through a plot on a graphics calculator. PDF reading is a good extra, don't expect too much. I convert all text heavy, non-technical books using "calibre" to the PRC format. Works well enough for reading for pleasure. (PS. I have a Kindle 2. Received it a few weeks ago)