But there 's bad news for anyone thinking about ditching their phone down the toilet : waterproof mobiles are the next big thing . Supplying phones to emerging markets and connecting world 's poor seen as important theme at mobile event . Comment: Mobile World Congress also raised debate over future roles mobiles will play in our lives .
Supplying phones to emerging markets and connecting world 's poor seen as important theme at mobile event . Comment: Mobile World Congress also raised debate over future roles mobiles will play in our lives .