Just another option, is RepliGo for reading .pdf files. I have found it somewhat better than Documents-to-go on the tablet side. It seems to handle the big .pdf's (which I use alot it seems) better than the Documents-to-go. For relatively short-term reading, I find the tablet side more than adequate, and it has the super benefit (for what i do at least) of being able to read on the tablet side while I simultaneously take notes on the eInk side. Further, I have found that while some of my .pdfs are rather "light" on the eInk side, they are easier to read on the tablet side. But these are highly individual issues and one has to know what is best for oneself. One size does not fit all.