1. A computer-implemented method for tracking and/or identifying persons within a casino using a tracking system, comprising: under control of one or more computer systems configured with executable instructions, tracking a biometric characteristic of a person on a continuous basis; assigning a first probability value corresponding to a probability that the person is identified correctly based on the biometric characteristic; tracking, on a continuous basis, one or more electronic devices within a vicinity of the person, wherein the tracked one or more electronic devices includes one or more of a cell phone or a personal digital assistant, wherein tracking the one or more electronic devices within the vicinity of the person is performed using one or more of cell phone location, Wi-Fi, or other wireless communications protocols; assigning a second probability value corresponding to a probability that the person is identified based on the tracked one or more electronic devices; correlating, at the one or more computer systems, the first probability value and the second probability value in order to calculate a confidence probability value; and identifying, on a continuous basis, the person as a function of the first probability value and the second probability value based on the confidence probability value.