iPhone owners spend 55% more time on their device than Android users

http://www.tuaw.com/2013/05/29/iphone-owners-spend-55-more-time-on-their-device-than-android-u/

The State Of Responsive Web Design

http://mobile.smashingmagazine.com/2013/05/29/the-state-of-responsive-web-design/

Open Source iOS UI Control For Easily Creating Iconized Popover Menus

http://maniacdev.com/2013/05/open-source-ios-ui-control-for-easily-creating-iconized-popover-menus

Open Source iOS UI Control For Customizable Flat Style Alert Views With Custom Transitions

http://maniacdev.com/2013/05/open-source-ios-ui-control-for-customizable-flat-style-alert-views-with-custom-transitions

FXReachability

https://github.com/nicklockwood/FXReachability

Geocoder & Reverse Geocoder Tutorial For iOS

http://www.codigator.com/tutorials/geocoder-reverse-geocoder-tutorial-for-ios-using-mapkit/

Beautify Your Objective-C Code

http://blog.artlogic.com/2013/05/29/beautify-your-objective-c-code/