sadly, I dont think the 30 buck unlimited option will be available for the TB though. I'm expecting sky high rates, including caps, tiers and even a straigh jacket(lol). All for a service that most folks wont be able to access till 2013.
While it would be nice to have 4G at 29.99, I just can't see it happening. Costs incurred to roll it out, $10-15 more has been speculated and to me its reasonable, once my area gets 4G EOY.