Jérôme Flipo spotted a new GDrive feature in an animated GIF file shared by the Google Drive team: a “Gmail attachments” section.
It turns out that there are many references to Gmail attachments in Google Drive’s code, so this new feature is not yet enabled in the public version of Google Drive, but Google employees test it.
It’s likely that you’ll be able to manage Gmail attachments from Google Drive, find attachments and share them with other people. Google Drive is already the central file repository for most Google services.