E-Books

Just wondered what everyone thought of the new e-books (cf. http://news.bbc.co.uk/today/hi/today/newsid_7545000/7545598.stm)? It would appear they are becoming more popular and more literature is available to use with them now. Has anyone come across one? Would you use one?

Personally I can't get too excited about it as I'm too wary of technology going wrong and would find it very frustrating to get part way through a book only for it to pack up and not let me read the end. However, maybe this isn't likely. I'm also not too sure of the safety aspect of using one in the bath!

What do others think?