Abstract: A system is presented that facilitates transactions for products to be completed and product inventory tracking to be performed in real-time even if the products are brought to the location of a customer prior to the transaction. The system completes transactions by accepting and settling cash, credit card, debit card and other forms of payment in real-time. In general, the system includes three basic components: an application module, a back office portal and a portable device. These components may be placed in communication with each other in various configurations to perform various functions that enable product tracking and transaction completion.

Abstract: Systems and methods are provided for transacting credit card payments, and reconciling inventory and cash transactions on moving vehicles, such as, in one embodiment, a passenger aircraft in-flight. The system employs a portable device for completing remote point of sale (POS) transactions. In one embodiment, the portable device is a personal digital assistant (PDA). The system includes an Internet portal in communication with a database for entering and storing pre-sale and post-sale transaction and inventory information, which may be used for reconciliation purposes, among other things.