Nope, since the first MacBook Pro the dual-microphones have been placed in the grill, with the PowerBooks and iBooks the single microphone was placed in the left side of the display panel in a small hole.
The white/black MacBooks, I believe, placed it near the iSight camera.
Has this place become such a cesspit that you can't countenance the possibility I'm simply supporting your position and backing it up with evidence? Perhaps I should have added the word 'yes' as the first word.
And someone felt the need to down vote a reply simply containing evidence that proves a commenter correct? I despair sometimes.
The white/black MacBooks, I believe, placed it near the iSight camera.