Based on results from the Trilogy project, the IETF has recently started the MPTCP working group that builds a major extension to TCP that will allow hosts and servers to use TCP connections that efficiently use several paths. This extension is expected to be very useful for a large number of hosts ranging from multihomed servers to mobile devices having a WiFi and a 3G interface. Benefits of this include better resource utilization, better throughput obtained thanks to the resulting pooling of network resources, and smoother reaction to failures. Sébastien Barré has released the first prototype implementation of MPTCP in the Linux kernel. See http://inl.info.ucl.ac.be/mptcp