1. An end-user device comprising: a modem for enabling the end-user device to access one or more network communication end points over a wireless network; a user interface; memory configured to store a service policy associated with at least a first set of one or more service activities, the first set of one of more service activities being fewer than all service activities available to the end-user device, the service policy configured to: cause the end-user device to provide, to a network element, information for assisting in providing a first accounting to a sponsor entity, the first accounting comprising an accounting of at least a portion of a usage cost or usage measure associated with usage of the wireless network associated with the first set of one or more service activities, the sponsor entity being an entity other than a user of the end-user device, other than an account-holder associated with the end-user device, and other than an operator of the wireless network, the first accounting being separate from a second accounting of a second set of one or more service activities, the second set of one or more service activities being fewer than all service activities available to the end-user device, and cause a notification to be presented through the user interface, the notification being associated with the first accounting, the second accounting, or both the first accounting and the second accounting; and one or more processors configured to: monitor end-user device data traffic, identify, in the monitored end-user device data traffic, a data communication over the wireless network associated with the first set of one or more service activities, and in response to identifying the data communication over the wireless network associated with the first set of one or more service activities, apply the service policy.