Profusion.............................

     Thin wallets are the mother of invention;  so much design in China is about saving money.  The cheaper a phone is, the likelier it is to be dual-SIM, so you can save money network-hopping.  Electronic markets are filled with every type of video and audio and network switcher and splitter and converter because people don't throw the old stuff out, they just find a new place for it to work.  This profusion of systems - high tech and low, custom-built and jury-rigged, all side by side, is the normal case here.
     This widespread competence in making is part of what made Xiaomi possible.

-Clay Shirky,  Little Rice:  Smartphones, Xiaomi, and the Chinese Dream