I really don't understand why there's so little information available regarding the Cambo Compact, the only images I've been able to pull up are similar to what Lance posted - all product shots. I've been able find the dimensions and compared them to my WRS. The WRS is 6.10"x6.49" (155x165m) and the Compact is 6.49"x5.90" (165x150m). The weight difference is 1.1 pound in favor of the Compact. So without anything else to guide me it appears the Compact is slightly less bulky as the WRS which is svelte and weighs less. I should be getting the Compact Monday and plan to post a heck of a lot more images of it than there already are.
I'd like to add on to what Ed has added to his reply as well. I too go places that are extreme in nature. I've shot at the bottom of waterfalls in Yosemite, in snow, sleet, cold weather in Yosemite, Grand Canyon and Jackson Hole to name a few. I've also shot in what I consider is very close to a rain forest in Northern California in the Redwoods. Then there is Death Valley which is on the other extreme, sandy, windy, dust/sand storms etc.
While shooting a technical camera isn't the same as using a Canon 1DsIII or Phase/Mamiya 645 it is not as delicate as what I first thought. My P45+ has never given me a moments problems being wet, cold or dusty - of course I limit removing the back, changing orientation as much as I can and usually can shoot a day's worth of images with one-card. The only problem I've ever really encountered with the back is little grains of sand getting in the way of fully inserting the battery in a battery change however I found a decent workaround so that doesn't bother me.
The lenses I use are all Schneider (not that it matters) however I pre-select the focal length I want to use and try every hard to never swap lenses in the middle of a shot. I have swapped lenses and have found by moving the camera (on the Cube) down wind I can swap a lens in seconds thus keeping as much weather out as possible. Of course it helps if you have 3-hands which isn't always the case for me.
So I guess the question remains - is a technical camera as sturdy, weather resistant as say a 645 body? I'd say it's close if you take proper precautions (I always carry a large plastic bag) - then again a 645 normally isn't as weather resistant as say our Canon 1DsIII.
Best of luck to you.
Don