Millenicom -- no more unlimited service
Looks like Sprint is keeping it classy and putting the foot down on MVNOs who offer unlimited Internet service. If you are looking for Internet service via a My-Fi card or similar, anything CDMA is pretty much out of the picture with this announcement.
There is T-Mobile, but they will throttle to EDGE speeds once the limit is reached. EDGE is better than nothing, or a huge bill though.