Goner, You are quite right on all accounts. And since we've had various iterations of the system out in the field for the past 6-7 months, it's been pretty fun to see them take on a life of their own. Some guys use them for what I'd call their original stated purpose, as single-purpose storage bags for high-use consumables such as dominos or fasteners, but lots more of them are being used as task-specific job kits, made up of a few tools and components necessary for a specific application. As in, "leave the toolbelt... just take what you need."
At the end of the day, we figured we should just make the bags as tough and versatile as possible, and leave the rest to the user's imagination. More or less, I think it can be pretty safely said that no two shops or jobsites are the same.