SIXAXIS uses

Some very clever uses.

Why didnt Sony include 2 motion sensors in each side and made the Sixaxis capable to separate in the middle for some games?

For the standar games use the controller as normal (holding it with 2 hands), for a game like boxing split the controller in two pieces for example.
Of course there are some technical problems with this, like how the bluetooth tracks the controller, the batteries, etc. But with some clever engineering could have been posible.

The ecuation would have been complete with the Eyecamera tracking both pieces in your hands.

 

Some great ideas! You can give him his own key. I'd hire you.

That butterfly thing in Loco Roco, I really hate being negative about something in advance, but this really doesn't sound like fun.

 

Hehe - thanks for the vote of confidence . That's the biggest problem with my job on the fringe of the industry (networking middleware). I work with dozens of titles per year, and lots of different studios. I meet tons of developers and publishers, but it's very clear the nobody (and rightly so) ever wants to hear gameplay suggestions from a guy in sales .