I have a main menu in my monotouch app that has 4 icons which go to various other screens. I would like to put an alert badge on one of the icons when my alert criteria has been met. Is there a way to do this using applicationIconBadgeNumber or something similar?
If you mean a UITabBarController than this code will do what you need
viewController.tabBarItem.badgeValue = 1;
Where the viewcontroller is the UIViewController which is associated with the tab]
If you would like to add it to a UIButton you can use this class here
That should allow you do it.