But unless the organization has somehow hidden an entire domestic mobile device supply chain right under our noses, this is virtually impossible. The T1 Phone, as it’s called, lists some decent midrange specs like a 6.8-inch OLED 120Hz refresh rate screen. Offering it for $500 as soon as this fall? That would take a miracle. Case in point: a company called Purism makes a device called the Liberty Phone, which sources many of its parts from US companies and assembles it here. The cost?…