I am now the proud owner of a Kindle. It's great. It's not like reading off a screen at all. It's even more portable than a book (it fits in my coat pocket) and gives me page after blemish free pages of words to read. As soon as I've finished one book, I can get a new one straight away without the need for a library or bookshop or to wait for delivery (over 3G, free in over 200 countries no less!).
It's so good it makes me sad. As much as I love books, I'm pretty sure that this is how it's going to be.