Hi Farmer Brown, I live in Georgia and must admit that the state knife laws as written are somewhat confusing. I believe that when these laws were being written that the main concern was with firearms and they just threw in knives without much thought.
Having said that, I generally edc a Delica, Native, Caly3 or similar knife. My job takes me all over the metro Atlanta area and I've never had a problem from the police. It's very common to see other men and even teenage boys with knives clipped in their pockets or on their belts (leatherman, Buck, etc). As others have said I suppose it could give an officer a pretext to hassle you if he were looking for a reason but generally typical pocket knives such as those I mentioned above should be okay.
Of course, local cities such as Atlanta are free to pass their own ordinances which could be more restrictive but again I've never had a problem.
Where knives will be a problem is at schools, courthouses, etc.
The part of Georgia law that creates the most confusion for citizens and cops is the line that says 'knife designed for the purpose of offense and defense'. Nowhere in the code is that defined but I did find one link that defines that as (swords, ballistic knives). The link is below. Hope you like Georgia.
http://georgiapacking.org/law.php
Strange as it might seem, I don't think Georgia's concealed carry permit applies to knives. So I guess that technically you could find yourself in a situation where it would be perfectly legal to carry a Glock but not a Buck.