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 BNP Media:
Welcome to the PROCESS EXPO show directory mobile app, November 1-4, at Chicago, IL, McCormick Place, South Hall. This app puts all details about the conference in the palm of your hand; allows you to be kept up to date on conference details, speaker information and any changes/updates that may occur; introduces you to all the exhibitors and allows you to plan your tradeshow experience; provides all the information you need for hotels; and gives you a directory to local area resources to make your stay more enjoyable.This app is brought to you by Dairy Foods, Food Engineering, Industria Alimenticia, The National Provisioner, and Snack Food & Wholesale Bakery.