T-Mobile is offering Sprint customers an extra $200 on their account if they switch carriers. The second "gift" announcement in the Un-Carrier Unwrapped campaign, T-Mobile claims it will provide a credit of $200 per line switched over to a Simple Choice postpaid plan from any Sprint number, including prepaid and postpaid plans, as well as those on Boost and Virgin Mobile, with the limited-time promotion starting from tomorrow.
