Help I have a Motorola Xoom Wi Fi Only Tablet and would like to take it to work for something to do in my lunch hour. Is there a device that I could purchase to use. I have heard that there is a Mi Fi Dongle but I am unsure if this is compatiable with my Tablet also I don't want others using my signal as the Mi Fi Dongle states upto 5 different devices at one time can be used. I would appreciate feedback, I am new to this and have not got a clue and don't want to look like an idiot in the 3 Store. Cheers