The head of Boost Mobile, Sprint Nextel's prepaid unit, said that Boost's $50 per month unlimited plan [1] has been doing well since it was introduced nearly a month ago. Matt Carter, the unit's president, said that the unlimited plan has not resulted in cannibalization of Sprint customers. Instead, he said postpaid subscribers are migrating from T-Mobile USA over to the Boost plan. Article [2]
Links:
[1] http://www.fiercemobilecontent.com/story/boost-mobile-debuts-50-unlimited-voice-data-plan/2009-01-15
[2] http://www.businessweek.com/the_thread/techbeat/archives/2009/02/boost_unlimited.html