THQ chief executive officer Brian Farrell may have given more credence to previous reports that the new PlayStation 3 motion controller device will be named the Playstation Arc. In a call with investors, Farrell referred to the new controller as the Playstation Arc repeatedly, in both his prepared remarks and during the Q&A session that followed.
In the prepared statement which opened the call, Farrell noted opportunities for his company with "new family-friendly platforms such as Microsoft’s Natal and the PlayStation Arc motion controller." Project Natal is the motion controller being developed for the Xbox 360.
It may be that "Arc" is just a working name for the device. Sony was using "Gem" as an internal codename earlier in development. Officially, Sony refers to the new device as the Motion Controller. It is expected to start shipping in fall 2010.