Add to my list of favorite things Eucalyptus, the app that lets you read free ebooks on your iPhone. On it you’ll find much of the content from Project Gutenberg–the online repository of texts in the public domain.
I found several of my favorite authors: Bernard Shaw, Oscar Wilde, and Phillip Dick. In spare moments touring around China I’ve gotten through two Sherlock Holmes adventures and Ben Franklin’s autobiography. (I hoped to read Chinese texts, but only found Sun Tzu.)
My aspirational reading list (read: will find time when retired) includes The River War (Winston Churchill’s account of Sudan in 1902) and accounts by early explorers (Mungo Park, Richard Burton, Mary Kingsley, Henry Morton Stanley, and the like).