Nagios 4 iPhone is a Nagios interface for the iPhone. It does not require any modifications on your Nagios servers. The server part of this software collects statistics on several Nagios servers, serves a few static files, and generates a JSON response. The client part handles the display of the data on the iPhone.
ICEfaces is a framework for developing Ajax applications for the Web and iPhone in Java with JavaServer Faces. In contrast to typical Web applications, ICEfaces applications can update any part of the page at any time. Full page refresh is eliminated, and multi-user interaction is supported through AJAX Push.