I think it is a great idea to have an iPhone app. I also agree with the suggestions you made above. I see the details regarding the current status of an application as a key piece. Job seekers often complain that applying to Federal positions feels like they are feeding a black hole so understanding where they are in the process and possibly what they could do to improve their chances in the future would be helpful. Much of the human contact in the job search process has been removed with online applications so any information (positive or negative) would be a plus. Thumbs way up on this idea!!