Todo list (in no specific order): * Compression * Routing by MAC (allows for more than only IPv4) * Store private key in a separate file * Sanity checks on configuration directory * Use efficient tree algorithms instead of linked lists * Reenable queues for delayed packets * Broadcast/multicast * Windowing, chaffing, scattering, background noise * ABC protocol (superscalabilty) * Proxy ARP * Eazy setup scripts (graphical?) * FreeBSD and Solaris ports * Threading * Everything else not mentioned.