left hand he meant, i think know what he meant, from the pic, the mouse shape tend to curve to right, that y he think is for left handed.
but well, ikari is meant for right handed as j.sun said. dont judge from picture, go test the mouse at LYP, then u'll know.

not much mouse are in white color case from steelseries thou

should have rephrase, not much SS mouse are white in base (er, i mean the bottom part).
you do notice the mouse u mention are black in base.

apple magic mouse don't have scroll button right?