All the sizes of iOS app icons - Neven Mrgan's tumbl
http://mrgan.tumblr.com/post/708404794/ios-app-icon-sizes

Let’s say you’re working on an icon for an iOS app. The app is universal, so it should run on all iPhones (and iPod touches), and on the iPad. As a designer, you’re used to drawing icons at various sizes; this is a big part of what “icon design” is (as opposed to other types of illustration).

Overview of the various icon sizes for iOS applications

Have you bricked your iPhone/iPod Touch yet?

iOS icons made in pure css. http://is.gd/d8TI2 no images involved.

"11 iOS icons made in only CSS, no images whatsoever."

An assessment of mobile brower cache behaviour and recommendations for improving the chances that your content can be cached for improved performance.

An assessment of mobile brower cache behaviour and recommendations for improving the chances that your content can be cached for improved performance.

with cut-out-and-keep full colour charts.

with cut-out-and-keep full colour charts.