I've been avoiding electronic books.  I prefer to have a hard copy in my hands.  (If I'm going to the beach, I don't like the idea of hauling around an expensive electronic toy in the ocean air.)  My new laptop came with a copy of Nook installed.  I played around with it, and ended up downloading Kindle.

I've since purchased a copy of WPF 4 Unleashed to read using Kindle on my laptop.  So far, the only thing I don't like about Kindle is the scrolling.  Instead of scrolling down in the text of a page, when I scroll, Kindle jumps to the next page.  This is a little counterintuitive when one is used to scrolling smoothly down an HTML page or a PDF document.

However, I have to say I am growing used to the e-book concept.  I may have to purchase a Kindle device.