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 Net Junky Research:
FlatHead is the only way to say "I'm Crushing Your Head" with style. Take a picture, position the Crushing Fingers(TM) with care, and save a masterpiece to your photo library or share it with the world!With FlatHead you can email the stunning results of your work or post directly to Facebook.Step 1: Use the library or camera icons to choose or take a pictureStep 2: Move, grow, shrink, and rotate the Fingers of Crushing to your specificationsStep 3: Use the folder icon to save your masterpiece or the forward icon to send it by email or Facebook==== iOS 3.0 and 3.1 Users ====FlatHead won't work properly on devices running iOS 3. We're working on solving the problem and will have an update very soon. Please check the FlatHead page on Facebook for updates.