The world's most popular social network has put its main app on a crash diet so that it's lighter and nimbler and has a much smaller appetite for mobile internet data. Called Facebook Lite, it's the social network's way of ensuring its site is genuinely accessible to consumers in emerging markets that are just getting their first entry-level smartphones. The app only takes up 1MB of space on an Android handset and has been designed to run on 2G networks and even in areas where trying to get any sort of network connection can prove challenging.



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