I like the idea of shooting with a companion device (laptop, tablet) to allow the model to see the results as they happen. I dislike being tethered to a cable when I'd like to move around the subject for different angles, etc. The solution would seem to be Wifi but my D7000 doesn't have that luxury. Could this be the solution? Tech advice required on whether what I'm after - cableless tethered shooting - is possible with this device. Any comments?