T-Mobile USA has apparently pulled its free messaging add-on for contract users of the Samsung Galaxy Tab. The bonus had offered free unlimited text, picture and video messaging from the 7-inch Android slate when T-Mobile initially offered it earlier this month. Unfortunately, that option has now disappeared from the carrier's checkout process.
In doing so, T-Mobile has lost one of its key differentiators from the other US carriers offering versions of Samsung's tablet. It had been the only operator to bundle unlimited free messaging, going some way to balancing slightly less competitive data bundle costs. We're waiting to hear back from T-Mobile with an official comment.