Andy,
The PDF files didn't convert well into MOBI or EPUB formats, and the results looked the same in the computer and my Blueberry mobile, too. Well, almost the same, with the exception that the lines are a little off in the Blueberry mobile's display. I took a couple of shots of the display on my PC screen.
The first photo showed the abnormally compressed font...short and fat fonts that are hardly legible. The second photo showed the fat black column in place of the apostrophe character.