gistfile1.m

//Find the process ID for your iPhone app, attach the debug to it and hit continue. When you reach the first break point 
//set "more" to "NO". Hit continue and you will stop at the second break point.
//Taken from here: http://www.iphonedevsdk.com/forum/iphone-sdk-development/10156-how-do-i-debug-app-launched-url.html
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
	BOOL more = YES;
    while (more) {
        [NSThread sleepForTimeInterval:1.0]; // Set break point on this line
    }
    //your read code goes here. Set a second break point where you want to break at
}