Red iphone is the new limited edition products apple released lately. It was originally being used for support HIV/AIDS programs. Before this iphone, there are red shuffle and ipod. However, iphone seems really careful about the color choice.
As far as I think, the color red is a huge selling point that draws a lot of attention, given that there’s not much new attraction in terms of technology and design. Apple catched this feature and made a whole set of stories about it.