Let me "plunk" my initial post in here and then add to it. New stuff at bottom:
Hi Folks,
I've had my Kodak for a few days now and got a chance to take a variety of shots this weekend in different lighting conditions. You can see some sample photos with EXIF in the comments here:
http://www.reefpix.org/gallery/album38
The camera is full frame Nikon F-mount. It has a 512 meg buffer, meaning that I can take 15 RAW photos before the camera slows down! Other nice features are dual media slots (CF and SD), magnesium body, 10-pin control port, etc.
The nicest feature is that images are 4500 pixels wide x 3000 pixels tall. That means that I can take a vertical crop of an image and it will come out the same size (3000t x 2000w) as an image from a 6 megapixel camera... A print of a ProSLRn file at 300 dpi will be 15 x 10. A 16x20 will come out at roughly 200 DPI.
In good lighting, 100% crops at ISO160 look GREAT with incredibly fine detail:

Here's the full-sized shot:

ISO160 F8 @ 1/500th Nikkor 70-180 Micro at 70mm.
In low light at ISO320 the images had noise in the shadow areas. This noise depends a lot upon where you set the shadow value in Adobe Camera Raw, as most cameras just clip these shadows to black. Here's an example where I did everything I could, but still have green noise:

Not a lot, but it's there.
Some thoughts so far based on my short time with the camera and discussions w/ other photographers are:
1) This is NOT a JPEG camera. To get the incredible dynamic range out of the shots, use Adobe Camera Raw. You may also need ACR to knock down CA in the corners of wide angle shots and it does wonders at knocking out magenta aliasing. The JPEGs that come out of the camera are not as good as the S2 or D100.
2) Shoot at the base ISO (160) or use another camera. Controlling your lighting is very important. This will probably mean macro shots will look better than wideangle.
3) The camera is incredibly tolerant of overexposure. The dual surfboard shot was overexposed by at least a stop but was easily brought down in ACR with excellent results.
4) Battery usage with the microdrive: I was able to shoot about 3 cards worth of photos (3 gigs total) before needing to rechage. That included leaving the camera in sleep mode for a few hours.
5) It takes forever for the image review to appear on the LCD display. I haven't measured, but probably 5 seconds at least...
6) The viewfinder is better than my S2 and about the same as the D100.
7) It was nice to get full-frame fisheye shots from the Nikkor 16mm. They are VERy sharp corner to corner. Shots with the "consumer" Nikkor 18-35ED were acceptable, but I think this full-frame camera demands professional quality lenses.
More thoughts and sample photos as they become available.
If there are any other ProSLRn shooters who would like to share, please jump right in. I can't wait to take this camera diving!
New Stuff
Check the Aquatica homepage at http://www.aquatica.ca for an update. They list a ProSLRn housing as available this summer as well as one for the D70. Very exciting! The ProSLRn housing should be a lot like the S2pro housing that I am already used to and like a lot.
Re: the "negative" discussions about the Kodak. Like I said, it is not a JPEG camera. You absolutely HAVE to know how to use a computer and do RAW conversions to get the best results. Most of the Kodak userbase are established "old school" studio photographers and they are having a terrible time learning how to use the Kodak software, let alone Adobe Camera Raw.
I've used the camera around the house with the 70-180 Micro and it will produce awesome results with this lens and external flash. I think the macro results from this camera will be every bit as good as the Canon 1Ds - but with the added bonus that this camera accepts Nikon's excellent line of macro lenses - a much wider selection than Canon.
For wideangle, it will be difficult to say. I think it will have about as much noise as the D100 - which people have been using underwater and are very pleased with the results.
In any case, we will see soon.
The D70 and ProSLRn are vastly different systems. If you get the D70, you will definitely want to invest in a Nikkor DX lens for wide-angle, like the 12-24DX or the 10.5 fisheye. If you go w/ the Kodak, you will be able to use the wideangle and fisheye lenses you already have, as the camera is full-frame. Both cameras are extremely fast and can write to the memory card at 4 megabytes per second.
And RE the nikon vs canon thing, don't sweat it. It's no mystery that at the lower end of the scale, Nikon is ahead with their D70 with its high speed shutter sync, it's more robust build, the excellent DX lenses, and its blazing write speed.
Cheers
James