It's been a long time coming, but after much backpedaling, Virgin Mobile is throwing down the gauntlet -- it'll begin throttling data speeds come March 23rd. Like expected, each month that a user exceeds 2.5GB of data usage, he or she will have their downloads capped at 256Kbps for the remainder of the billing cycle. Data hungry users will receive a text message once the governor kicks in, and for those who simply can't stand to be held back, Virgin Mobile will all
