Apple posted some new videos to developer.apple.com/videos/ outside its annual WWDC cycle. Some of the new videos focus on the same content that Apple engineers presented during the iOS 5 Tech Talk world tour.

Attention to detail is essential when designing iOS user interfaces. This extends not only to pixels on the screen but also to the reliability and fluidity of gesture recognition.

The designated initializer of the UIViewController class, initWithNibName:bundle: contains a design flaw because it needlessly exposes the name of the NIB file the view controller uses. Fixing this flaw in our own code is easy.

A summary of the best iOS and Cocoa development-related posts from the past month across the blogosphere and elsewhere.

When updating an iOS app, it seems you cannot add new restrictions to the UIRequiredDeviceCapabilities section in your app's Info.plist file.