The software is available as a free download at http://www.wipeer.com and requires little configuration (I haven’t looked at the security settings yet, but assume it has some!)
You can transfer images in a matter of seconds between two computers running the software and a 700 MB (about the size of a DivX movie file) transfer takes just quarter of an hour, depending on the computers’ speeds. The approach also allows network gaming without going via a router, meaning players can connect on an ad hoc basis without having to login to a secure wireless network wherever they are.