File transfer on Facebook is finally a reality, thanks to an app called Pipe that launched this week. Pipe, based in Berlin, allows people to drag and drop music, documents, video, and pictures into a virtual green tube that connects Facebook friends in real time. Friends can receive the documents even if they don’t have the Pipe app or aren’t online. As well, Pipe supports files that are up to 1GB, which is a significant increase over the 100MB email limit.