Don't get me wrong, Microsoft's E3 Xbox 360 no-controller motion-sensing bolt from the blue dubbed "Project Natal" was impressive stuff, but Sony's wand-based motion-control response the following day got me thinking (as it did my colleague, Ian Paul, who has five questions for Microsoft).
A few years ago, I interviewed Dr. Richard Marks, i.e. the guy who talked us through Sony's PS3 wand-with-a-glow-bulb motion control demo at E3 on Tuesday. Marks is the guy who designed Sony's Eye Toy, and I was at the time working on a games interface story to coincide with the release of Nintendo's Wii. I asked Marks why Sony didn't just turn up the Eye Toy's capture resolution and challenge Nintendo with a hands-free alternative. In other words, why didn't Sony just debut their own "Project Natal" years ago? They had the essential tech--Microsoft's approach is essentially just the Eye Toy Plus, after all.
Marks' thoughts were telling, perhaps even predictive of what we saw from Sony on Tuesday.