While Motorola's VP of Product Management, Punit Soni, already announced that the Developer Edition and other Moto X models for various carriers are just days away, Motorola's Moto X page has been updated with the new Moto X Developer Edition, showing it in its full glory.
The Moto X developer Edition features a two-tone color scheme with black front panel and a white rear backplate with "DEVELOPERS EDITION" engraved on the bottom. It appears that this color scheme will be limited to Moto X Developer Edition and will not be used on any other carrier model.
The Moto X Developer Edition packs 32GB of internal storage and, of course, has an ulockable bootloader. While there is no details regarding the price of it, since the AT&T 32GB model sells for US $629 we doubt that this one will be any cheaper.
You can find all models at Moto X "ways to buy" page.