How to download an image from the web and display it in an UIImageView? For example, I have an URL like:
http://sstatic.net/so/apple-touch-icon.png
Would I need to mess around with NSURLConnection and the like, or is there a simple method that takes an web URL and downloads the image data automatically?

You can use
NSData‘sdataWithContentsOfURL:class method to download the image data from the server, then just pass that data toUIImage‘simageWithData:class method.Here’s an example: