T-Mobile blocks outgoing Twitter messages, according to TechCrunch. The company’s spokesperson doesn’t dispute it and then tells customers to basically fuck off if they don’t like it.
…Twitter is not an authorized third-party service provider, and therefore you are not able to utilize service from this provide any longer…. T-Mobile is not in violation of any agreement by not providing service to Twitter. T-Mobile regrets any inconvenience, however please note that if you remain under contract and choose to cancel service, you will be responsible for the $200 early termination fee that would be assessed to the account at cancellation.