Has anyone here had any discussion about the potential for transport level multihoming (like SCTP) to replace the current use of globally advertised multihoming on the Internet? If the transport pushes multihoming to the end node and IP layer multihoming not being propagated beyond direct peers. It would seem that such a system could significantly further the scalability of the Internet, while increasing the level of flexibility of multihoming (i.e. if the transport allows adding address to a connection in progress, this would facilitate mobility).