The Microsoft Lumia 640 has received an official price cut in the United States. The device is now listed on the Redmond, Washington-based company's US online store for $49 off contract, down from its usual price of $60. The $11 discount is available until the beginning of the next week - February 15 to be precise (seems like a Valentine's Day offer). An important thing worth mentioning here is that the handset on offer is locked to AT&T. This comes just over a month after the XL variant of the Lumia 640 received a $50 official price cut in the country. That deal, however, has expired...
Source: http://www.gsmarena.com/microsoft_lumia_640_drops_to_49_in_us-news-16516.php
