Google's patent filed in March 2007 and released today can bring real-time bidding to all types of wireless communications use. An excerpt from Wired:
"Google's patent filing describes "devices, systems and methods" that would automatically poll nearby wireless services to find the best price for a voice or a data connection for a "portable communications device." That connection might come via a cellphone carrier, a WiMax provider, or even a Wi-Fi hotspot. According to the patent, users can either manually select the bid they like best or they can allow the device to connect automatically with the lowest-cost provider."
Read the Wired article here.
Read the patent filed here.