German startup Pipe will unveil a new Facebook application today for filesharing on the social network. The app will enable people to send files up to 1GB in size to their Facebook friends, with the application itself set to spread virally in the chat messages that go alongside the filesharing. Pipe CEO Simon Hossell tells GigaOm that the company thinks people will be unlikely to share copyright-infringing files with one another in this way, due to it being linked to their real-world identity (their Facebook accounts). We wonder what other 1GB-size files people will be wanting to share with friends, and also wonder what tracking mechanisms and policies (if any) Pipe has in place if rightsholders come knocking at its door. Anyway, the company has a music background, with Hossell the former European sales director at Gracenote, and two of his co-founders formerly of music search site Songbeat.