This web site give a worldwide prespective of people twitting on their phones and give a completly new way of seeing disparity between users.
This map shows favorite brands, which will be diffrent in evrey country. People in Korea would prefert Android because of Samsung or people from American city would prefret Apple IOS devices because it’s trendy and also because it’s an american company with huge addvertising effectiveness.
Then in a larger scale smartphones are reflecting an economic contract because the value of those smartphones varied and creating new maps where showing social and economical contrast between cities areas. For exemple In los angeles the social fracture between poor areas and rich areas is showed by users and their smartphones (iphones costing more are in richer areas and android more cheaper are concentrated in poorer areas).