The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From INSIDE Guidance:
The Igeho Application is the perfect tool for hotel and gastronomy professionals.Using your iPhone, iPod Touch or iPad, you can explore the exhibition and event program using a highly intuitive 3D navigation system. The apps interactive map allows you to navigate the halls, access exhibitor information and organize them as your personal favorites.The application's features allow you to: - Search, browse and locate exhibitors and events on the 3D map- Synchronize exhibitor contact data to your address-book- Email exhibitors directly from within the application- Display the entire Igeho event program- Access useful information regarding travel, accommodation and ticketing- Save exhibitorsand eventsin a personal favorite list anddisplay them together on the 3D map- Synchronize events to your personal calendar- Share and comment exhibitorsand events to your friends via EmailAdditionally, you can regularly update the app's data and images using the built-in update functionality, and you can opt to use the application offline to avoid roaming costs.