Does anybody have any experience of using Aquapacs for digital cameras?

Only that you cannot keep water out! Best to NOT drop it in the ogwash or let it get wet!
My father tried one and said it blured the images.
Surely ex Chairman Pat has a view?

They work quite well. You can get some which have a piece of optical glass which goes over end of the lens, this keeps the shots sharp and not blurred. Have a looka round on the net for some reviews, there are plenty around.