Sprint's guaranteeing a $200 minimum smartphone trade-in credit for T-Mobile switchers

Sprint's taking the fight straight to T-Mobile and is offering customers of the Un-carrier a guaranteed minimum trade-in credit of $200 for their current working T-Mobile smartphone. That's in addition to the current contract buy-out offer (though T-Mobile ditched traditional contracts nearly two years ago) or up to $350 in credit to pay for their new Sprint phone.

source: androidcentral