Apple's next-gen iPhone also comes equipped with Apple's speedy A4 chip and a gyroscope, which when coupled with the accelerometer, provides 6-axis motion sensi

Apple's next-gen iPhone also comes equipped with Apple's speedy A4 chip and a gyroscope, which when coupled with the accelerometer, provides 6-axis motion sensing. Six Axis? OK, I picked up my mouse, and demonstrated to myself, rotating it about each of the three(X,Y,Z) Cartesian axis -- no problem. So then I tried to figure out the other three: All I can guess is that they are movement along those prior mentioned axes. Is this correct?