New HP Photosmart Digital Cameras R817 and R818

HP has introduced two new digital cameras with an underwater housing. The cameras seem to have specs and features similar to the popular R707 and R717 but the new cameras have a large 2" display and an accessory housing. I just picked one up today and so far am very impressed. I haven't gotten it wet yet. I'm interested in if anyone here has seen this camera or better yet used it underwater. What is your experience? My other camera is an Oly C-5060 with the PT-023 housing and an external strobe. I think I might use the Hp more though based on its smaller size and better ease of use.