Last month I mentioned a couple of interesting iPhone and iPod Touch cases that offer free 4G mobile internet access (yes, completely free! Up to 500MB, at least). Now the same company, FreedomPop, is offering mobile broadband devices--a USB modem and a mobile hotspot device--so you can get the same free internet service on your PC or Mac laptop, Wi-Fi only iPad or other wireless devices.
Did I mention it was free?
The plans and device costs differ depending on which Freedom product you use, so check out this overview to learn more.