The Only Responsive Designs Tools You'll Ever Need

http://bashooka.com/freebie/responsive-designs-tools/

70 iOS 7 and Legacy Tips, Tricks and Secrets

http://www.tuaw.com/2013/09/21/70-ios-7-and-legacy-tips-tricks-and-secrets/

Free iOS 7 GUI Kits and Templates

http://speckyboy.com/2013/09/20/free-ios-7-gui-kits-templates/

Glossy and Transparent Elements in Mobile App Interfaces

http://designmodo.com/glossy-transparent-mobile-apps/

Customize UITableView and UITableViewCell Background using Storyboard

http://www.appcoda.com/ios-programming-customize-uitableview-storyboard/

50+ fantastic free tools for designers

http://www.webdesignerdepot.com/2013/09/50-fantastic-free-tools-for-designers/