The Mobile section of site catalyst can show you the unique visitors that used a mobile device for a day. There is no option to see it based of a week or month like you can with regular users. With many new mobile devices being more powerful and growing in number, this is a sector of the web that could become an important market. Being able to track the unique users over a longer time frame can help website to better see how much of there audience uses this platform. This can lead to better decisions about mobile features, apps, and marketing.