Or, you can buy a Kindle and download thousands of free books from Gutenberg.org or wherever. The Kindle doesn't lock you in to only reading Amazon books. I've probably read about as many project Gutenberg books on my Kindle as I have books I bought from Amazon.

You can't load pdfs directly on to the Kindle but instead of sending the file to youraccount@kindle.com for $0.10, you can send it to youraccount@free.kindle.com and it will send you back a link to the converted file which you can download and load on to you Kindle via USB. You can load text files directly on to it. Also, Kindle supports unencrypted Mobi-pocket format, so you can use any available mobi creator to convert pdfs and other documents.

Whether or not Apple's stock _should_ go up or down based on Steve's health is not the issue. The issue is that it does go up or down and if an insider knew that there was going to be an announcement about Jobs taking a leave of absence due to his health and sold their stock before the news came out, that would be insider trading.