Since we're still doing 'plumbing' maintenance on the Alpha versions of the website, the iPhone App isn't in final form (It will break with the next website release). So we've temporarily removed it from the App Store until the new version is ready.
The testing we did for the last two weeks went very well! Thanks so much to all who helped us. The App will continue to work for approximately 3 more weeks, then you'll have to download a new version.