I was first in line at the Apple Store in South Coast Plaza two years in a row - for the iPhone 3G and the iPhone 3GS. 😉 Unfortunately, I won't be there for the iPad as I'm not in the market for this particular tablet as the feature set doesn't interest me (see: HP Slate, FusionGarage JooJoo). But I'll definitely be back for the launch of iPhone fourth-generation hardware this summer!
Best of luck to you guys waiting over night early Saturday morning. As a tip I've learned over the years, the mall security guards usually don't allow anyone to start forming lines until between 5:00am and 5:30am. It could be different this year depending on the particular security personnel, but this is based on my own campout experience. 😉