Re: The Playstation Move!
Well Sony wants to use their controller for both casual and hardcore gamers, they showed this off at their presentation. This controller offers 1:1 accuracy unlike the Wiimote so it can offer something if developers take advantage of it well rather then as a gimick.
One example they gave that I thought was great was that developers can control the color of the ball so they can make it start one color (lets say blue) and make it slowly fade to red as if you are losing health giving you a health bar in your hand rather then on screen.
Oh and Sony is not copying the Wiimote, they are just late to the party. They have been working on this controller since the PS2 (tech demos are available from back then).