These maps, from the Economist, show the cost of a prepaid 500 MB/month cell phone data plan in countries around the world. The top (red) map shows the absolute dollar cost (PPP), while the second (green) map shows the cost as a percent of per capita gross national income. By the latter measure, Austria has the world’s most affordable cell phone data service (at 0.1% of per capita GNI); service in the US is surprisingly expensive (2.1%, possibly due to the industry’s near-duopoly), but that’s nothing compared to the DRC’s 126.4%.