The Motorola Razr — once the hottest flip phone available — is being revived as a smartphone with a foldable screen, according to reports. It will be offered exclusively through Verizon in the United States, possibly in February, although the device is still being tested and the launch date is not firm. Its starting price reportedly will be $1,500. Unlike Apple and Samsung, Lenovo may not have the chops to push a $1,500 smartphone, suggested Ramon Llamas, a research director at IDC.