It was to show that nintendo gameboy utilized that technology already. 6 degree of freedom on kirby tilt and tumble on a nintendo gameboy color.
If I were sony, I’d have problem talking about 6 degree of freedom in front of a gaming crowd…I’d be embarassed. But then again, it’s sony…they think people are gullible and uninformed. I bet many people thought “hey, isn’t that tilt and tumble technology?” when it was demo-ed.