Having worked in several retail, wholesale, and restaurant positions with a variety of POS, I think this is a very interesting space ripe for disruption from multiple angles. Marketing seems to be the differentiating factor between the major players at this time, as the article states.<p>What I think the article misses to point out, is the great variations in actual usability of the systems. POS analytics and systems with robust central backups are not new. Having so many UX designers now able to participate, and being able to rapidly iterate versions with fixes users actually need, is very new. Without saying too much, I am very excited to be moving these technologies forward at this particular time.