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 Stephen Guenther:
Trip Cards is a travel app that allows you to use universal icons for basic comunications regardless of regional language. Basic communications is somethimes diminished when common language is unavilable. I have found that there are universal international symbols for many items, services and needs around the globe. This app povides a solution by allowing the user to display a number of key icons to show, thus communicating via symbols needs for basic communications for travelers Within this application are many of the basic icons to use while traveling. The app also has the ability to log a history of icons viewedand to can create a favorites list as well.