ARLINGTON, Texas — The Pinnacle Corp. recently completed and certified an interface between its Pinnacle Palm POS platform and Centego’s fuel rewards loyalty host. By leveraging Pinnacle’s existing point-of-sale loyalty functionality and specifications, Centego has completed the development of an interface between Pinnacle Palm POS and the Centego loyalty host, enabling retailers using both platforms to offer consumer fuel discount rewards based on prior purchases at other channel retailers.