Thanku for sharing this useful information.. I would like to share something too...

Thinkwik is an expertise driven web and mobile apps Development Company helping businesses achieve their goal through robust and engaging web and mobile presence. To Build real time application, mobile app and website

http://www.thinkwik.com/iphone-application-development/
http://www.thinkwik.com/android-application-development/
http://www.thinkwik.com/node-js-framework-development/