i know the 7.0 won't and doesn't, but i also came across something odd
using a generic cable w/7.0 to transfer file from pc my tab [7.0] wouldn't register
as being connected or come up as malfunctioning but with the samsung cable no prob
the cable for the 10.1 is the same cable
so is the tab 7.0 an otg nogo or does it have more to do with the charger port ?