BBCnews is carrying this update on the scanning of the Archimedes palimpsest:
Until now, the pages have remained obscured by paintings and texts laid down on top of the original writings.
Using a non-destructive technique known as X-ray fluorescence, the researchers are able to peer through these later additions to read the underlying text.
I seem to recall a Nova special on this book detailing the discovery of the technique, but not any of the text. Looks like they're progressing at the rate of a page or two a day (maybe less). But any progress on the writings of someone as important as Archimedes is fine by me!