Everything about this camera seems great, except the 18mp on that small sensor. For people who work outdoors, at lower iso's (which, I will grant, is the majority, especially birders and sports shooters) this will be a benefit. I do most of my work indoors in low light. This same camera, at 12 or maybe even 15 mp, could have been the lord of darkness. Oh well...
What I find most interesting, however, is that Canon is now going head-to-head with Nikon on price, something the two manufacturers studiously avoided until now. The 7D has better video, and higher resolution. We'll have to see how the new sensor shapes up against the D300s, and how well the new AF system compares to that in the Nikons.
If Canon can match up pricewise with the D300s, bring on the D700 slayer!