Tesla just issued an update to their supercharger map which removes the I-85 Commerce(-ish) SC site and the I-85 NC/SC border SC site from the Fall 2013 plan. Now there's a "Coming Soon" phase, and those sites aren't in it, rather pushed out to 2014. Atlanta / I-85 drivers have gotten the short end of the stick on this update, in favor of focusing on I-95 and the cross-country link (e.g. Elon's spring trip).
Looks like Greenville SC will continue to get some decent restaurant / hotel business from the Atlanta-area Model S owners making the trek!
Supercharger | Tesla Motors