I have a question on the VOOM SURF + STREAM packages specifying the number of devices (1-4). I recently purchased the Beverage & VOOM 1 Device package for my upcoming cruise in Feb on Oasis. Does the 1 device mean I can only use one specific device the whole cruise or only 1 device at a time? For example, in the stateroom I would like to use my laptop but while going about the ship I would like to use my iPhone. Thanks in advance for the clarification!