I know we were looking at this a little earlier, and I decided to look more into the teather / phone options, etc.
Clear has a plan that has 4G coverage + month-to-month for $45, not such a great price, but at least it is not stuck with 2 years:
http://www.clear.com/plans
(Mobile Internet > On The Go plan)
Also, it looks like the iPhone / Blackberry option is available from ATT (which in iteself may not be so great) for $60 / month. 5GB inc.
http://www.wireless.att.com/answer-c...&t=solutionTab
Sprint, which is one of the more popular for mobile connect that I have seen, found here:
http://www.wirelessbroadbandinternet...cfm?catid=2399
Seems to also be $60. I am not able to tell about contracts at the moment.
Maybe other teams have had more luck?