Not sure how a piece of plastic can "amplify" a signal, that would require adding energy. I can see how it would focus the sound though, and that is what it does.
@Gary_7vn: The strange thing is that this actually works. I don't have the actual piece up there, but when I put my phone in the pocket of my car dashboard, it actually sounds louder. It also works as concentrating the reception of the mic.
I thought we were past the issue of the iPhone's speaker sucking. I've actually been quite impressed with the speaker phone capabilities on the 3G iPhone.
01/21/09
01/21/09
01/21/09
01/21/09
01/21/09
01/21/09
01/21/09
01/21/09
I'm weeping, while swinging on my Pirelli Tire swing, and later I'll eat dinner, at my Pirelli-bottomed dining room table.