I know almost nothing about MiFi, and am interested in learning more. For those who know even less than I, Mifi refers to small devices which work as portable router/modems, allowing you to set up a wifi network anywhere you can get a signal. My goal is to create a portable net connection for my Mac laptop. I know about tethering, but don't need or want a cellphone, so am looking at MiFi instead. If you have and use a MiFi device, I hope you might share your experience, make vendor and product suggestions etc. My wife has a cellphone and an AT&T account. We have a Cox Cable net connection at home. I'm wondering if I'm going to need yet another net connection account if I want to use MiFi with my laptop. Creative thinking is welcome here.