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Tips & Tricks for iPhone - iOS 6 Professional Edition
iOS iPhone Productivity
The most detailed Guide for iPhone! More than 400 tips in 9 categories + 50+ Secrets, even we as experienced iPhone developers didn't know! Try it out and you will learn more about your iPhone, than you did using it for years.
* iOS 6
* iOS 5
* Get into It
* How to Solve Problems
* Special Tricks