Mobile point-of-sale is transforming the retail industry in a way few technologies have done before. For small merchants , the benefits of installing mPOS technology include not just low-cost card acceptance on smartphones and tablets but also access to the value-added retail management software offered by traditional POS systems , but at a lower price. For large retailers, mPOS provides a way to improve customer service and to respond to showrooming. This guide covers the basics, including: Security PCI Cloud-based systems Ancillary services Bulky cash registers are a thing of the past for small and medium-sizes businesses ( SMB s), as smartphone- and tablet-based systems with attached card readers become more prevalent. Another benefit of these mPOS devices is that they can be used for line busting during peak store hours. While micro-merchants may find it sufficient to attach an mPOS card reader or dongle to a smartpho...