I never really understood comparing those numbers anyway. As impressive as iPhone sales are, they're not all used for games. Every DS/PSP/3DS were sold with the intention of playing games on. Gaming on my iPhone is terrible, IMHO. Angry Birds can be entertaining, but any comparable game to what I play on the DS is just too frustrating to play on a touch screen-only device.
From my observations, facebook has had a much larger impact on gaming than iPhone has. I have plenty of older relatives that'll tend to a virtual farm on facebook but won't play games on their phones.
From my observations, facebook has had a much larger impact on gaming than iPhone has. I have plenty of older relatives that'll tend to a virtual farm on facebook but won't play games on their phones.