I don't know if anyone has thought of this in the other threads but I'll give my thoughts here.
March 2010 is the release date of GT5 in Japan
March 2010 is the release date of Sony motion control in Japan
There was talk about using head tracking for GT so you can look to your left and right and you would look out your windows of the car witout pressing buttons to do it.
So i guess it would be like you could look at your rear view mirror or side view mirrors easily or you could just look at the car passing you without pressing a button and taking your eyes fully of the road.
That's why i think they are waiting. Not just because it's 65% complete. Some of that remaining percent could be the motion control. I wonder if they will do any other motion with the game.
