1. A wireless end-user device, comprising: 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 at least one WWAN; and one or more processors configured to, for a time when data communication for Internet service activities is provided by the WWAN modem and the at least one WWAN, classify whether a first end-user application associated with an Internet access request, and capable of both interacting with a user in a user interface foreground of the device, and at least some Internet service activities when not interacting with a user in the device user interface foreground, is interacting with the user in the device user interface foreground, and allow or disallow the Internet access request based on the classification as to whether the first end-user application is interacting with the user and based on a power control state, such that when the power control state is a first power control state and the first end-user application is classified as not interacting with the user, the Internet access request is disallowed, and when the power control state is at least one other power control state, the Internet access request is allowed.