1. A wireless end-user device, comprising: a plurality of wireless modems to communicate data related to one or more Internet access activities, the plurality of modems including a wireless wide area network (WWAN) modem to communicate data for Internet service activities between the device and at least one WWAN, when configured for and connected to the WWAN, and a wireless local area network (WLAN) modem to communicate data for Internet service activities between the device and at least one WLAN, when configured for and connected to the WLAN; and one or more processors configured to associate each of a plurality of Internet access requests with a corresponding Internet destination, apply a differential traffic control policy to at least some of the Internet access requests, based on (i) the corresponding Internet destination associated with a particular Internet access request, and (ii) a differential traffic control policy list distinguishing between a first one or more Internet destinations and a second one or more Internet destinations, such that, for a first one of the wireless modems, Internet access requests are allowed when associated with one of the first one or more Internet destinations and allowed when associated with one of the second one or more Internet destinations, and for a second one of the wireless modems, Internet access requests are disallowed when associated with one of the first one or more Internet destinations and allowed when associated with one of the second one or more Internet destinations.