If you’re a network geek, this one is great — otherwise, you can use this code to get your app to determine network state and check whether a particular site is available. This app also shows you, if you uncomment a line of code, how to run in asynchronous mode and notify the application of a change in device status.
Reachability (IPhone Application Development)
Next post: BubbleLevel (IPhone Application Development)
Previous post: NavBar (IPhone Application Development)