I haven't checked all of them. But hte three I did look at, NONE of them actually offered ebooks. Yet. And there was no mention that they were going to, nor any search returns fro the phrase 'ebook'
I know Manchester Library is considering it,because I emailed them a while ago and asked. - yet they don't appear on the Sony list. I wonder where they did get that list from? They're all fairly small county library services, that I wounldn't expect to be leading the forefront of modern technology.
Will (when if it ever happens) UK library books only be on the 600? (or the Daily Edition? (what number will that have?)) or can you download them to a PC and transfer to the 505?
SO much left unclear.