mpicpp points out that BlackBerry is hoping to get iPhone owners to switch to Passport smartphones by promising up to $550 to trade in their phones. "The promotion, which starts Monday, promises as much as $550 to iPhone owners who trade in their handsets in favor of BlackBerry's Passport. The actual trade-in value depends on the iPhone, with the iPhone 4S worth up to $90 and the iPhone 6 worth up to $400. (The iPhone 6 Plus is not eligible.) BlackBerry then sweetens the deal by kicking in an additional $150 as a topper for each iPhone. The deal will run through February 13, but it's good only in North America. Customers must buy the $599 to $699 unlocked Passport phone through either BlackBerry's website or Amazon. The trade-in amount comes in the form of a Visa prepaid card."