My Aquapac has arrived and it is excellent, just what i needed for beach reading!
Just to confirm, i chose the large PDA one which is the 364. It look exactly like the one Andrew has photographed and included in an earlier post.
UK buyers may be interested to know that it is currently available for £12.49 with free postage from
http://www.7dayshop.com
I had not bought from them before but the transaction was smooth and delivery was quick.