There are multiple articles which examine what college students look for in mobile devices. Given that college students need information readily at hand, their choice of mobile device can make their lives easier or harder.
Be sure when examining articles that you decide if the article is biased in any way. For example, the first link provided is an article supported by Blackberry. This article, "A Connected Life: A look at mobile strategies for schools," is underwritten by Blackberry.One could justify that the article is biased towards Blackberry devices.
Another article which speaks to mobile devices and the college student is called "Mobile Phones and Youth: A Look at the US Student Market." This article was prepared by the International Telecommunication Union (ITU). I would suggest that this article, given it is not specifically sponsored by a mobile device manufacturer, would be more unbiased.
One last article, published by BizReport, offers another unbiased article on mobile devices and college students ("College Students Favor Mobile Phone Comms over Computers").
Digital News Test Kitchen is another site which offers readers a chance to examine smartphones and the college student in icle entitled "Smartphone User Survey: A glimpse into the mobile lives of college students."