There's another thread on a different forum -
Lets settle the 'Darwin Wiggett' debate! :-): Canon EOS 7D / 50D - 10D Forum: Digital Photography Review
"Those of you who are accusing Darwin of not knowing what he's doing are making fools of yourselves and are an embarrassment to Canon users who want to see the truth. Darwin wasn't out to prove the 7D is perfect, he was just showing how it performs in certain situations with certain settings. "
and
"Which only proves Darwin's point. Have you actually read his review? He didn't say the 7D is a terrible camera. He said it doesn't work for him for the type of photography he does and the settings he needs for that type of photography. "
There also seems to be QA problems with the AF. It may be .00001% of the cameras or 5% - who knows? After reading most of this stuff I conclude that the Canon 7D is a VERY complicated piece of electronics, and with that many megapixels squeezed into the small 1.6 crop sensor the sweet spot is smaller than for other aps-c DLSR's. Much of the problems may be due to user error - folks not reading the user guide on AF, or not calibrating each lens to their 7d body.
Bottom line, the pasture on the other side is not always greener!