Jeff Croft explains some differences in use between mobile users and desktop users (On ‘Responsive Web Design’ and the mobile context, 2010):
For me, creating a great mobile version of a web product is all about capturing the context the user will be in when they visit.
By and large, mobile users want different things from your product than desktop users do. If you’re a restaurant, desktop users may want photos of your place, a complete menu, and some information about your history. But mobile users probably just want your address and operating hours. If you’re a blockbuster movie, desktop users probably want an immersive experience, including trailers and production details. On mobile, they probably just want to know where the nearest theater is and what time it’s showing. If you’re a calendaring application, desktop users probably want a full-featured suite of tools for adding and editing events. Mobile users are probably more focused on simply seeing what they’ve got going on today. If you’re a major retail site, desktop users may be more interested in browsing and shopping, whereas mobile users may be more interested in checking the status of an existing order.