Google's Advanced Technology and Projects (ATAP) group is finally ready to show off a new, fully working prototype of the Project Ara modular smartphone. The prototype appears to be a polished version of Spiral 1, which made a brief public appearance in June at Google I/O. Perhaps most excitingly, though, the Project Ara engineers say that they're almost ready to show off Spiral 2, which will make the prototype from the video look like a potato.