This is fantastic. The POS space has needed massive disruption for decades. Kill the dinosaurs!
The target market for this is very squarely (heh!) high end indie shops.
Caveat: I work for one such company (GoPago).
We've got a new generation of POS systems coming into place using commodity hardware, the internet & business model that doesn't involve paying some shady fucker thousands of dollars for plugging in some hardware & typing in your menu.