I got my mifi device this afternoon and setup was a snap. I established my account, submitted credit card info, etc. using my PC (Windows 7 64bit) and then connected with my eDGe. Took less than 10 minutes and no snafus.

The device is just like the Verizon Mifi and the user interface is pretty intuitive and simple. Speed is only so-so. Per Speedtest.net, I achieved 1.08Mbps down and 0.38Mbps up, which is on the lower end of what you would expect on 3G (granted, it was around 4:30pm local, so speed might get a little better when it's not at commute hours). But overall I'm satisfied so far and would encourage anyone looking for a 3G solution for their eDGe to consider it.