On a side note, the graphs / charts on this page are really quite visually appealing. Does anyone know if these were automatically generated charts, and if so what tool is used? If not, probably just some data extraction and photoshop, but still, nice looking data.
They say they connected with Mobile Commons to build the app, so my immediate guess was Mobile Commons provided them with the API and statistics, and tumblr just designed around those stats for the visual styling.
