In the US, Virgin's never been known as a serious postpaid player outside of its Helio acquisition, so it makes some sense that new corporate parent Sprint is killing off its postpaid services -- what's rather wild, though, is that they're doing it in dramatic, scorched-earth fashion. The service is simply ending on May 25, a little under three months from now, with no automatic transition to any other service in Sprint's portfolio -- Virgin prepaid, Boost, Sprint, or Sprint Direct Connect -- but the good news is that anyone interested in moving over to Sprint postpaid specifically will get a $50 discount off any device with a new two-year contract plus waived activation fees. It's far from a slam dunk for either Sprint or legacy customers -- we're certain that not all of them will stay within the company's ecosystem -- but with Virgin clearly part of Sprint's prepaid strategy, there was apparently no good business reason to continue supporting a handful of postpaid customers off to the side. For what it's worth, a Virgin Mobile spokesperson reached out to us today to emphasize that the company's prepaid brand is here to stay: "Virgin Mobile with Boost Mobile will be the cornerstone of Sprint's prepaid strategy in 2010." 2011, though... well, that remains to be seen.