If you use all of the monthly data cap, and continue to use data, will Exede charge overage, throttle speeds, or both?
No, but if the throttling gets too bad for you, you can purchase additional GB. Usually using just the web, I don't notice the throttling that bad but I am not a heavy video user. You will noticed the throttling the most when downloading movies, programs etc, things that are already compressed. The text on web pages, not so much.