Okay, but what happens when Dropbox makes a minor upgrade to their sharing, making it also "quick" or real-time sharing? Already, when uploading a file to Drop

Okay, but what happens when Dropbox makes a minor upgrade to their sharing, making it also "quick" or real-time sharing? Already, when uploading a file to Dropbox, it can be shared and partially downloaded before it's finished uploading. Do that with an image or video that was just recorded, or that is being recorded, and that seems like real-time sharing to me. And doing that with Dropbox means that, after it's been shared, it's also synced, mirrored, and backed up for you. Where does that leave Jumpshare?