Pipe, the Facebook app that lets you transfer files in real-time to other users of the social network, will finally be available for all to use from Wednesday. It’s been in invitation-only mode for a year, but Pipe CEO Simon Hossell told me the time has been put to good use: a secure locker-like feature has been added to take into account those who aren’t online to receive the file at the time of sending, and relay technology has been added in order to help the service bypass corporate firewalls. But the finalized Pipe is now ready to roll. It’s really quite simple. You install the Pipe app in Facebook and drag-and-drop to send a file to a friend – if they’re not already using Pipe, they’ll receive an invitation to do so. Files get sent through peer-to-peer (P2P) connections, so nobody – including Facebook and Pipe itself – can snoop.