I am in the process of migrating apps from the old gallery to the new. I have screen captures of the results from the same app in both. In the older gallery version, if there is only a single file type available, it defaults to that file type and you click the icon for the type. In the new gallery version, you must select a file type before you can download the file, even if there is only a single type available. The dropdown makes sense for one that you have multiple types (like pcxml), but it makes no sense to require the user to go through an extra step to select a type before downloading when that's the only type they can download. Please see all the screen captures. The blue-ish background is from the new gallery.