1. A wireless data system, said wireless data system comprising: a plurality of servers coupled to a wide-area network, said servers having product offers with location information; a wireless device, said wireless device comprising a wireless receiver and transmitter, a location unit to render location data, a display, and a client program to communicate with the wide-area network using said wireless receiver and transmitter, the client program sending product offer requests including a current location of the wireless device to the plurality of servers; a requester alert generator forming part of at least one device configured to return at least one response product offer to the wireless device in response to receiving a product offer request from the wireless device, the response product offers being selected from said product offers on the plurality of servers based at least partly on the current location of the wireless device; and an offerer alert generator form in part of one or more devices, said offerer alert generator configured to send an alert to an offerer associated with said at least one response product offer when the offerer is within a predefined range of the current location of the wireless device.