I know that many apps (like messaging apps eg whatsapp or facebook) every time like 30 seconds, ask the server for push notifications.
I know that 3g has many state, when downloading data the consume is incresed, and when not in use (idle) it is less.
Since the apps are not synchronized toghether, the request from an app could be sent when 3g is just passed to idle state.
So i was wondering this: is more dispendious to shut down 3g and then reactivate it like 5 minutes later (to let apps download push notification) or just leave it on and let apps to use it when needed?
I know of cDroid which is a cloud-based android, and one of their feature is of course push-notification download synchronization.
Thanks for answers!