I'd like to display a temporary message on the iPhone/iPad displaying confirmation of an action, or some quick status about some background activity.
Is there a standard control to do this? I've seen apps do this. A rounded rectangle, dark and partially transparent with text inside. It does not ask for user input but disappears on its own in some short period of time. Android has a similar construct which is standard. Also similar to the windows displayed by Growl.
Suggestions appreciated.