Here's a fascinating video, based on a study from Google.
It starts with pretty freaky numbers about how we all use our smartphones and then focuses more on our consuming habits.
About the video:
This video presents key findings from "The Mobile Movement: Understanding Smartphone Consumers," a study from Google and conducted by Ipsos OTX, an independent market research firm. The findings come from research conducted at the end of 2010 among 5,013 US adult smartphone Internet users. Google commissioned this research with the objectives to better understand how smartphones are used in consumers' daily lives and how smartphones have influenced the ways consumers search, shop and respond to mobile advertising.
I originally found it in this great website.