I also use my iPad for 'academic' reading. When an epub is available, I use that with Marvin (I wish it worked with pdfs!). And for pdf's I use GoodReader. I ca

I also use my iPad for 'academic' reading. When an epub is available, I use that with Marvin (I wish it worked with pdfs!). And for pdf's I use GoodReader. I can highly recommend both! Oh, and for storing my pdfs and epubs I use Calibre. Also a great app.