360Commerce: Java, Linux at the point of sale (POS)

Where is innovation happening at the retail point of sale? If you were deploying thousands of POS locations, what platform and POS software would you select? 360Commerce has POS applications written in Java -- and they run on your choice of platforms including Linux. Apple is using 360Commerce on Mac's in its Apple Stores. Others are using 360Commerce on Linux in their stores. Makes sense, doesn't it? Ultra low platform cost, commodity hardware, cheap to deploy by the hundreds (or thousands), and rich functionality. Why bother with Microsoft and Windows? Might airline checkin/gate terminals be next up for Linux deployments? How about major call centers? How about bank branches and those platform systems? Why spend the money to deploy Windows in those environments when Linux running on commodity hardware more than meets the requirements?