While Sony still hasn’t confirmed whether its motion controller device will be called the Arc for playstation, the rumor mill has gone one step further this week with a forum-poster claiming it’ll work alongside a Wii-like nunchuk.

GDC is kicking off over in San Francisco this week, so if ever there was a venue to announce a new add-on—or even confirmation of the name—that would be it.

Big button on the Arc

The user, “ichinisan”, says the add-on has an analog stick and X and O buttons and that the L1 and L2 shoulder buttons are underneath the D-Pad.

He also says that the wand contains “one very big button on top”; with Sony’s trademark facebuttons of X, O, Triangle and Square added on; and a trigger marked “T”.

If it is to be revealed, then we will no doubt hear lots more from Sony’s GDC press event on Wednesday.