As you all know Mobile app development is being hailed as next big thing . As more and more people use smart phones for day today use,Mobile banking,games etc, mobile apps are must to reach out to customers , sell products etc . Almost all famous websites have smartphone compatible webpage or apps. There is also a huge market for mobile apps and games(free /paid) for Smart phones . As a result ,choosing Mobile app development as a career seems to be a good choice . But choosing a career in mobile app development is bit tricky , coz most platforms providing mobile app development doesn't support developers dream of "write once run everywhere" functionality . Currently android , ios , windows and HTML5 platforms are mainly used to develop mobile apps .Current Smartphone sales is as shown below . This graph will give an insight into the reach and growth path of different mobile OS.

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