Now when I first heard of the move, I instantly thought it was going to be a glorified Wii remote. But it doesn't use infrared to connect with the playstation...instead it is made up of a number of things which detects motion...
For starters, there is a large orb on the end of the remote. This orb lights up to a colour that contrasts with your background, so the Playstation Eye camera can clearly see it. Because of the camera looking at the orb, it can detect the remote's position in 3D rather than just a 2D plane.
It is very accurate in it's detection. Fluid movements, quick detection and a lot better than the Wii remote! I don't mean to constantly compare them but they are the same thing really, but the Move being the better option.
Now we just have to wait for the games to come out for it! Heavy Rain has already had the patch to enable Move controls...which work fantastically well, and the few launch games that are available are pretty good too!
Check out EyePet Move Edition. It's fantastic!