I agree, that's good advice for platforms/devices that won't be able to run the app. For iOS the author doesn't have to do anything but wait.

The app gave you that message because Mobile Safari doesn't have a file picker. That'll change in iOS 6, which will be released within the next few months.

http://www.idownloadblog.com/2012/06/13/ios-6-safari-media-u...