I'm going on holiday next month, and I dont want any nasty surprises when I see my bill due to background apps unknowingly using data when I'm abroad. Is deactivating "Data network mode" via the power button the one-stop be all and end all way to do this? Reason I ask is I seem to remember some settings in one or two apps (I cant remember which ) to disable syncing/retreiving etc when roaming. Will I need to make sure these are also set? If so, can you point me in the right direction where these settings are, as I cant find them anywhere any more!