Google Keep stores its content in Drive, but it doesn't pull content from Drive. That may change, however, as Google Operating System has spotted some unused Drive integration code within the Android app. They suggest that users could attach Drive files to their notes and either view them directly or open them in third-party software. Media hounds wouldn't have to upload video, though -- there's mention of embedding YouTube clips. The code doesn't guarantee that Keep will be file-savvy in the near future, but it does show that Google is at least considering such an upgrade.