How  The PlayStation Move Is NOT A Wii Remote
                             
I just played SOCOM 4 with the newly-named  PlayStation Move controller. And now I know how the PlayStation 3's  motion-sensitive controller is not just a me-too Wii controller.
 For those who need the basics, the PlayStation Move is a remote-like  motion-sensitive controller with a sphere at the end. The sub-controller  is an off-hand controller being offered for some Move games. The Move  controller connects to the PS3 with the help of a PlayStation Eye  camera, which detects the Move's colored sphere, while tilt sensors in  the move transmit their position data to the PS3.
 But at first glance, the whole thing seems like just another version  of the Wii Remote and Nunchuk.
 
Not quite. There are key differences:
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Fewer buttons: The Move controller is actually even  more streamlined than the Wii Remote. Nintendo's Remote still  offers/confuses a new player with a d-pad, plus, A, minus, 1 and 2  buttons as well as a home button and B trigger. The Move has its own  home button and underbelly trigger, but just five other points of button  input. That makes the controller actually feel a little naked and  therefore likely even less daunting to a new player  unless they need  their controllers to look like TV remotes.
 
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No wasted batteries: The Wii remote sucks up AA  battery juice. The Move and its companion sub-controller are  rechargeable via the same mini-USB connection used to charge the PS3's  main controller.
 
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A smarter controller: I played SOCOM 4, a third  person-shooter, with the Move pointed at the TV like a gun and the  sub-controller in my left hand to command character movement. Wii games  that were controlled with Remote and Nunchuk could be befuddled if the  player pointed the Remote away from the screen. If you were playing a  shooter and aimed just off the screen, the game's camera might start  spinning or the game would pause and ask for the player to point at the  TV again. The combination of camera sensors  the Sony Eyetoy on top of  the TV detects the presence of the Move  and a gyroscope prevented  SOCOM 4 from getting confused. When I moved my controller to point off  of the TV, the gyroscopic sensors kept track of my movement. The same  thing happened when a SOCOM developer blocked the Eyetoy camera. The  precision of the controller diminishes in these situation. but the PS3  doesn't lose track of the device.
 
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No wire!: The Wii Remote and Nunchuk are tethered  by a short cable. The PS3 Move and its subcontroller are not.
 
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No off-hand gyro: The Wii Nunchuk has a sensor that  detects motion, more crudely than does the Remote. The PS3's version of  the Nunchuk, does not have a motion sensor, according to a developer I  was speaking to. There's a chance that is not final, but that is the  case with the controllers at Sony's showcase event today. But that's why  two-handed boxing-style games were shown with two Moves. On the Wii,  those kinds of games are handled, with supposedly less precision, with a  Remote and Nunchuk.
 
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The colored ball: The colorful sphere at the  pointing end of the Move is the thing that the PlayStation Eye uses to  detect the presence of the Move. The color changes. In the demo I played  with SOCOM 4, the sphere was orange. Why? Because the software detected  that there was no orange in the background. If we had been in a  different room, the color would be different. The Wii's signature hue  may be white, but this varying color at the end of the Move will likely  prove to be the Move's visual trademark.
 
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The Z: Without a Wii MotionPlus, the Wii Remote  cannot accurately sense depth.The Wii's sensor bar doesn't know how  close the player is standing to their TV, nor can it recognize movements  toward or away from it. The PS3, however, can detect such movement  in the Z-plane. It does this thanks to the sphere at the end of the  controller. If the player moves the Move toward themselves, the  PlayStation Eye camera sees the sphere shrink and therefore knows the  controller has been moved in the Z-plane. Clever. [UPDATE: Readers point  out that a standard Wii Remote can sense some depth. I have even played  games  a long time ago  that ask for the Wii remote to be pulled in  or out. I never found that detection to be all that precise and believe  the PS3 Move, based on how the tech was described to me, should be able  to detect Z-plane movement more effectively, without needing to be  pointed directly at the TV, as the Wii Remote must be.]
Vergleich zur Wii-Mote aus der Socom 4 Preview von IGN
Still, the moment that sold me on the scheme was when we were pinned  down by the enemy and my screen was covered in my own blood. Huddled  against a car, my team whittled the bad guys down to just a few. I  ordered them to positions by pointing and tapping the D-Pad, but it's  crazy how good your team is without you. They will just go out and clean  house. Anyway, I popped out of cover, and in the tiny gap between the  frame of a far-off car and the road, I could see the ankles of an enemy.  
In a snap, I pointed the Move and took my shot. It was simple, easy and  fast. 
This is what I wanted Resident Evil 4 on the Wii to be. 
It's quick and  precise. It feels like a real control scheme and not a gimmick.