Doesn't really bother me much.
The Mustang has always been the top dog, even if it wasn't always faster in a straight line. The Mustang has had nearly 46 years of non-stop production, while the Camaro had 35 years and went on hiatus, and is just now coming back.
I like the new Camaros, and I see them as an asset to the domestic muscle car game rather than a threat, especially with the 2011 GT having SLIGHTLY less horsepower, but with less weight as an advantage.
I'm glad I can walk into a Ford, Dodge, or Chevy dealership and walk away with a fast, great looking modern muscle machine. I seriously doubt Ford will be knocked out of the park at this point in the game... even when the Mustangs were sporting 260hp and 302tq at the time where the LS1 F-bodys were 320hp and 340tq or whatever the Mustang still came out on top.
But as always... the new Camaro will be a super stout performer that will respond RIDICULOUSLY well to bolt ons, and type of cam swap or head work, and a tune. The Mustang will be behind in that category, as always, even with the new 5.0 under the hood.