I used to recommend this to customers. I purchased a Macally iLaser that with their software has terrible control on pointer speed, it's either slow or hyper speed on the next notch up, so I tried this. This does not work. 10.5.2 G4. It seems it hasn't been updated since before 10.5 yet it gives 10.5 as a requirement. I installed and had to do a keyboard restart and a Safe Boot. I am left handed and after swapping left and right button functions I no longer had any mouse click function.

Buyer beware.