No, what you see is not the PSPGo's upcoming Gran Turismo steering wheel adapter. It's Sony's solution for backward compatibility on all your old PSP peripherals.
Personally, I never picked up the PSP's camera kit or a 1seg tuner (since the US lacks the awesome 1seg television standard). But some people did. Important people. Important people who should be buying the PSPGo without worry.
So here's Sony's adapter...prototype. Apparently the design is not final and there's no firm pricing or release date. Given all the superfluous casing going on this photo, it certainly seems odd that there's a random cord that inelegantly snakes along the back of the Go. And by odd I mean "lazy." [Joystiq]