Multisetup is a networking application server that provides a multiple os, thin (multimedia) client based, legacy device friendly environment for home networks. Its an alternative to single OS networks and XP Media Center.
The goal of Slipper is to control peer to peer applications on a remote server. This might be of some use to people behind firewalls and proxies and are being banned on some ports (ie napter, gnutella), but ftp and telnet ports are still available.