http://cdn.okcimg.com/blog/camera/SexAndSmartPhonesByAge.png
http://cdn.okcimg.com/blog/camera/SexAndSmartPhonesByAge.png
However, I do like OKC in that they take tons of data and make actual conclusions about it. Regardless of whether or not it's eventually proven wrong, or (as stated above) there are some obvious discrepancies not taken into consideration, it's still cool to see overall trends in human psychology based on something so simple as how a photograph was taken.
My guess is that it's one or more of:
1. iPhone users tend to have more money as a group and that correlates with more sex.
2. as a group they tend to be more concerned with appearances and sensual experience and sensation seeking.
3. as a group they are more impulsive.
There is some evidence that higher-status individuals of both genders have more sex; and money is a fairly strong proxy for status in our society.
Droid Eris is not a MotoDroid is not a N1 is not a Sidekick is not a HTC Evo ...
Really, there are certain Android and Motorola phones that could have very similar demographics to the Blackberry or iPhone. Furthermore, Comparing the cameras on the phones more recent than the MotoDroid to those that came before is night and day.