Andisheh Nouraee @ CL explores Georgia's gun laws in a lengthy illustrated article.
This blogger, who is another of the 3% (roughly 300K) of Georgians who have permits, was under the impression weapons had to be carried concealed. He'll have to read up on that, for clarity. In any case, he'll carry concealed, as exposed guns (and even guns with "print" through clothes, make some people nervous.
GB 89 is fairly new, but so far, no "saloon" shootouts, as predicted by opponents, have occurred.
Restaurant owners should not be expected to enforce the law, which says you can't drink if you're packing. That's an individual responsibility. If you are drinking and packing in a bar, and use your gun, you will be put UNDER the jail.
If the ATL airport had as many uniformed officers walking around holding UZIs (small automatics) as I saw in Europe, I'd be comfortable allowing them to defend me. On the other hand, I've waited in lonely MARTA stations for extended periods without ever seeing a MARTA policeman. But, I see MARTA police cars driving around often, and even got a ticket (which I beat) from one in the Chick Fil-A in Decatur.