Here in Atlanta, at Lenox, it was just crazy. We arrived a little after 10PM, and already the line was at least 2000 people long. We didn't even make it in to the store until way after midnight.
I heard several people say that it was even bigger than the grand opening. Apple clearly underestimated the turnout, but fortunately, they didn't underestimate demand for Jaguar. There were plenty of copies on hand. Everybody who bought something got a Jaguar T-Shirt (black apple logo front, big spotted X on back). I also snagged one of the mouse pads and stickers.
I think the real draw was the 10% off anything (except Jaguar) in the store. That's $320 off of a TiBook 800, and a real enticing offer.
All in all, we had a good time with all the other Mac geeks in line.
Even though I had a copy of the Jaguar upgrade (through the OSXUpToDate Prgm) on it's way, I went ahead and bought another one. I guess the hype got to me.
It seems most of the other Apple stores did similar business. Makes you wonder how many Macs Apple could move if they just decided to drop the price 10% for a week....