They've been looking at that since the early PSVR days.
There were rumours they'd hired one or two of the guys who already made it work (I used the PSVR on Steam for a bit until the Quest), so the only surprise is it took this long and they didn't make a bigger deal out of it to push sales. Will be interesting now if they do and the kind of controller support they'll add, if it's full and it works then that will be very good for VR.
