1. Android market grows a staggering 861.5 per cent
2. Mobile apps market to reach $38 billion revenue by 2015,
http://news.brothersoft.com/mobile-apps-market-to-reach-38-billion-revenue-by-2015-6089.html
(visited on May 13, 2011)
3. Android market,
https://market.android.com/
(visited on May 13, 2011)
4. Apple app store,
http://www.istoreus.com/home.html
(visited on May 13, 2011)
5. Why native app stores like itunes and android marketplace are bad for mobile developers,
http://www.businessinsider.com/why-native-app-stores-like-itunes-and-andoid-marketplace_are-bad-business-for-mobile-developers-2011-5
(visited on May 13, 2011).