VA theory assigment.. Mouse analysis

Yesterday after talkin to some 3rd year industrial students about Theory VA assignment, they influenced me to do a VA on an optical mouse instead of the chosen product before which was the blender. The mouse is easier to be analysed and also provide sufficient details for the assignment...
Below is the sub-assemblies of the components of the new Mac magic mouse, it just came out and yet they are already taken apart.. shameeeee