From the Guidelines (click here) section of the show website:
Don’t bring dogs or other animals, bicycles, roller-blades, skateboards, alcohol, drugs, drug paraphernalia, fireworks, food or beverages, weapons of any kind (to include weapons carried by off-duty law enforcement personnel), blunt objects which could be considered a weapon, larger coolers, backpacks, briefcases, large bags or packages, handheld laser pointers, RVs or campers.
Another note- if its anything like a few years ago, plan on the security arrangement as more keystone cops then military efficiency. There is a "Team" of experts at crowd control including CERT, GDF, Cobb Police and even CCT doing their best to be between you and the show. For details about 2008 click here, but you really don't have to take my word for it... Fatalberts and Glens words.
Just be prepared bring comfortable shoes, light easy to carry chairs, small camera bag, an ipod to keep you entertained while waiting, and buy a drink and a snack at shows end!
I'm still 50/50 as to if I go on Sat, it will depend on if I get good captures from the end of the runway on Friday.
Good luck to us all.