EDIT: I see the older version of the thread got brought back to life so I re-titled this one to not be misleading. I see the new thread got attached to the end of the original thread. Anyway on the new thread it was determined that is much more likely a poor tuning of the in cam jpg sharpening and NR algorithms than anything to do with the black dot issue of the 5D2.
Sorry my mistake. It's probably not a big deal at all. it wont' affect RAW at all. Hopefully they will fine the jpg sharpening/NR before release (these samples were taken months ago apparently). Still not sure why Canon always uses awful sample shots, each camera release seems to lower the bar for the samples they provide.
Wow, after the big deal about the black dots with the 5D2, they post a bunch of 5D3 samples where bright objects have black haloes. The issues looks worse than it ever did with the 5D2.
Hopefully they can fix it again. A bit surprised they have the same sensor issue again.