It would probably make a lot of people happy if SCE simply designed the housing to accomodate a button/analog stick layout as close to the DS3 as possible.
But for console type games with a 3D camera, that second analog nub will make many games a whole lot more playable. I'm guessing the rear mounted track pad will be multi-touch capable allowing custom hotspot "buttons" to be mapped to a developer's liking as well.







