Large survey on mobiles by dagoog
Attitudes About Smartphone Advertising by Gender and Age
(by Google) offers a ton of data about global smartphone usage and tools to chart it every which way you'd like. The chart above shows how many smartphone owners don't mind advertising in return for freebies or special offers, split by gender and age. (I created this chart assuming 50+ users would be more interested in special offers, but I was wrong.)
Sent from my iPhone