Has anyone tried a CL-1000 in an otterbox 2600 or 3600 case?

I need a case for my zaurus which is:

waterproof
floats
lets me see the screen
use a CF or USB bluetooth card
can sustain dropping the zaurus a metre or two

My intended use is as a GPS mapping device on a boat, so the zaurus will almost certainly be splashed and could fall in the water.

Alternativley are there any other cases which could do this? I've seen the Pelican 1020 mentioned but it doesn't look like you can read the screen through it?