12. A system, comprising: at least one computing device; and a specialist locator application in the at least one computing device, the specialist locator application comprising: logic that obtains a call request from a mobile computing device, the call request pertaining to a topic and including a current location of the mobile computing device, the topic comprising an item category, the call request including an identifier of the item category and a current location locating the computing device within an area of a store in which products in the product category are displayed; logic that maps the current location of the mobile computing device to an item specialist and to a phone number of the item specialist; and logic that completes the call request by establishing a call between the mobile computing device and the phone number of the item specialist.
12. A system, comprising: at least one computing device; and a specialist locator application in the at least one computing device, the specialist locator application comprising: logic that obtains a call request from a mobile computing device, the call request pertaining to a topic and including a current location of the mobile computing device, the topic comprising an item category, the call request including an identifier of the item category and a current location locating the computing device within an area of a store in which products in the product category are displayed; logic that maps the current location of the mobile computing device to an item specialist and to a phone number of the item specialist; and logic that completes the call request by establishing a call between the mobile computing device and the phone number of the item specialist. 13. The system of claim 12 , wherein the item category is selected from the group consisting of a product category and a service category.