This device obviously contains 1 or 2 mems gyros - which is the one thing the wiimote lacked preventing it from true sixaxis sensing (except when the sensor bar is in sight).
It should be an improvement in sensing though the stupid developers will probably never figure out how to use it - they have enough trouble with the accelerometers.
FYI the PS3 sixaxis contains one gyro also but no game has ever even used it ! - i think there are many sixaxis with defective gyros and sony dont want anyone to know as they will need to replace the defective units which will increas their losses. Which may be why no games for the PS3 have ever used the yaw mems gyro (sony wont approve them).
With this attachment the Wiimote does everyting the sixaxis can do and more - nintendo were pretty smart to include an interconnect port on the WII-mote.
Still plenty of room to improve i.e. microphone , speaker (which wiimote also has ), camera (i.e. in game webcam etc) , better accellerometers and gyros, better vibration- force feedback etc.
PS3 number 1 fan
