This might be a late contender for weirdest "mobile usage" news item of the year: A new study, put together by an online resource called BabyCenter, claims that there's a tie between women becoming mothers and women buying smartphones. 53% of moms surveyed by the site reported that they bought smartphones (including the iPhone) as a direct result of becoming a mother. Moms are 18% more likely to have a smartphone than "the general population."
Why is that? Mothers apparently change their app habits when they have kids as well: Before having kids, women report that their most-used apps are contacts, text messaging, and em