LiveMockups intend to allow you to make your mockups live.
Once you have designed your user interface prototypes with Balsamiq mockups, you can use our tool to convert them into a single lmml file. Transfer this file to your device using iTunes or by email, and open LiveMockups.
The link you specify in your controls are used to change the image displayed by the app.
A simple "presentator mode" is available if you connect a second screen (using the dock-vga adapter) from your iPad or iPhone 4 (don't work for older devices).
The tool should be downloaded from http://livemockups.openium.fr .