T-mobile bans VOIP over its 3G network

ZDnet UK recently had a story about T-Mobile in the UK baning (through its terms of use) the use of VOIP over its new Web’n’Walk Pro 3G network (which utilizes an HSDPA-enabled data card). Lets hope that regulators start paying more attention into the use of contractual prohibitions or technical impediments by licensed users of the public air waves (wireless carriers) to protect against cannibalization of competing services they offer.