A.J. of RECSEA here. First time attempting to reply via a blog, so please bear with me.
RECSEA will manufacture an underwater housing for the FUJI x10. Here's a sneak-peek of the housing...
http://www.recsea.com/Recsea/products/comp...HF-X10_001.html
http://www.recsea.com/Recsea/products/comp...HF-X10_002.html
Note: The final housing may be a bit different than the computer generated images.
We expect to have a prototype ready this month and the final product ready to ship by mid March.