From what I've seen the POS is still the same old thing that was developed in house at Babbage's back in the early 80's. Wouldn't want your company to ue the latest technology. Heck, with POS system you can do things like track you customers buying habits and then generate custom marketing for segements of your customer base.
Heck, ask that other DFW ertasiler Gadzoks (GADZ) about installing one of those. Oh . . . that's right . . . they backed out of that as well.