Horace Dediu puts some analysis behind those numbers he published over the weekend:

iPhone users are about three times more engaged in shopping with their devices than Android users. Two years ago the ratio was two to one.

Why Android users don’t use the “smart” part of their phones seems to be the question of the day, even on some political sites. Without any data, the most logical answer to me is that Android phones are pushed as free replacements for flip phones to people who are simply phone users. It’s hard for technology people to understand, but there are a lot of people who actually just want to make phone calls on their cell phones. As sick and depraved as that sounds.

Believe it or not, I know a guy in his 40s who still doesn’t have a cell phone of any kind (anecdotes!). And, no, he’s not Amish.