Future-Proof Investment Utilizing VeriFone’s SingleCI Architecture Provides Easy Upgrade for Existing POS, ECR and PC-based Payment Systems DUBAI, May 18, 2009 (Cards Middle East Conference) – VeriFone Holdings, Inc. (NYSE: PAY), today announced the QX1000 plug-and-play solution for adding contactless card payment acceptance to existing point-of-sale devices, electronic cash registers (ECR) and PCs. The QX1000…