The Lumia 640, which was announced last month at MWC 2015, made a brief appearance yesterday on the US Microsoft Store website, giving us an idea about the carrier pricing for the device in the country. Although for a short duration of time, the device was listed as "coming soon" for just $89 -- the listing (see image above) has since been pulled by Microsoft. What's worth mentioning here is that this is the no-contract pricing. This comes just a day after Expansys USA started offering the unlocked Lumia 640 LTE (dual-SIM version) for...
Source: http://www.gsmarena.com/microsoft_spills_the_beans_on_pricing_for_tmobile_lumia_640-news-12027.php