Windows Phone 7 device mockup by 512MB of RAM, also for <nowiki>"</nowiki>Mango<nowiki>"</nowiki> and Tango update, the requirements were revised to allow for chipsets with slower processors, and for devices to have a minimum of 256 MB of RAM. Certain features of the operating system, and the ability to install certain resource-intensive apps. The 512MB of RAM is the device for Tango updates, live everything new for Live Tiles in the device.