By default, my Nexus S will notify me when an open network is available but it will not connect automatically unless the wifi SSID matches an SSID I've previous

By default, my Nexus S will notify me when an open network is available but it will not connect automatically unless the wifi SSID matches an SSID I've previously connected to. I would be surprised if any device would be set up to just connect to any available open network, it would be terribly insecure. As it is, I'm disappointed that I can't configure my device to only automatically connect to SSIDs with certain matching MAC addresses. I consider it fairly insecure that it will simply assume that "linksys" is trustworthy anywhere in the world just because my ex girlfriend lived out on a farm where wifi security wasn't worth the hassle.