And a 5D MkII thrown in for good comparison. Watching the 1D MkIV getting the spank of its life is a painful experience to say the least:
 
"Don’t get dismayed Canon fans, compared to most cameras, the EOS 1D Mark IV does a very respectable job at high ISO, however the Nikon D3s just takes things to a whole new level, I hate to encourage you to skip past the fine print, but check out the ISO 1600 samples from the D3s, they look a lot like ISO

Both panoramas are located in Europe: One is the worlds biggest panorama, depicting the city of Dresden, totalling 26 Gigapixels ( 297.500 x 87.500 pixels) It concists of 1.655 pictures and it took the pano-robot 172 minutes to finish! The other one, a spherical panorama was taken in Prague, and it  is 192,000 pixels wide and 96,000 pixels tall giving us a total of 18.4 Gigapixels.

Common for the three cameras is added support for the new wireless transfer units. The 5D Mk2 also gains lower noise when shooting in bulb mode
Links for 1Ds Mk3  ver.1.2.0  1D Mk3  ver.1.3.0   5D Mk2  ver.1.2.4
 

A review written in a very personal style, but yet professional:
"The 5D is really a much more versatile camera than the M8. Its got AF, its speedy, its low light ability is CRAZY good and the full frame sensor gives you some super creamy, super smooth files. BUT the size of the camera, for me, is overkill. Just to large, and I would never use it! Usability Factor for me was low, but man, the images are gorgeous.
 

It may look like a (sub)pixel-peeping feast, but still a very good read. No wonder why the 1D MkIII was left out of the shootout, these guys are landscape photographers. From Miles Hecker @ wyufoto.com:
"So, to sum it up, it seems that the coventional wisdom holds. Big pixels are better pixels, at least when the final output is a relatively large print. Crop sensor cameras have advantages in the reach department, for telephoto work, but not for overall quality. We won't argue the point that full sensor cameras require higher quality lenses to resolve detail across the whole frame. It certainly is true, and lens selection is critical for best results from the 5Dmk2 or Sony A900. We won't debate the

Nothing new, really, let's hope a true fix will be available soon:
To Owners of the EOS 5D Mark II Digital SLR Camera

Thank you for using Canon products.

We have learned that some users of the Canon EOS 5D Mark II digital SLR camera have identified two types of image

Quote from Canon's site:
"Canon's White Papers are not manuals. They are:
A detailed, in-depth look at the major features within each specific camera
An exploration of new system enhancements, with an explanation of the technology behind each one.
A comprehensive overview of Canon software and accessories compatible with each model.

White Papers are traditionally created for product marketing -- but we also want to offer these informative documents to any photographer wanting to learn more."
 
 

Seems this hole "black dot" issue is really starting to haunt the otherwise excellent reception of the MKII:
"Had the EOS 5D Mark II not suffered from the black dot issue, it would have easily earned our highest recommendation. It’s one of Canon’s most powerful DSLRs to date, capable of delivering superb image quality with decent handling and all the latest bells and whistles. The movie mode is also an excellent addition, and while it’s not a practical replacement for a camcorder for most amateurs, the results can be spectacular and independent film

It will be a pixel peeper xmas after all:
"There has been some speculation about whether it shows up mostly in JPEGs or mostly in RAW conversions and whether it depends on which RAW converter you use and if you have noise reduction turned on. However in both JPEG and RAW

Eh, quote:  "m'th'rf''ck'ng'ss'l'ck'ng'sh't!"  He also claims that the camera is less responsive than his kid's toys.
Fun aside, there are some good remarks too:
"The front control dial is still in the wrong place, at the wrong angle, and made of the wrong material. It's a hard, thin knob that you have to turn using the inside of your pointer finger, right on the side of your joint. It hurts if you shoot with it for a while.