keyboard-interactive and PAM under protocol v2

[Kevin Steves]

On Wed, 18 Oct 2000, Michael Kiernan wrote:
: Support for the keyboard-interactive authentication method has recently
: been added to OpenSSH.  This looks like a nice way to take advantage
: of more of the capabilities provided by PAM, at least under version 2
: of the SSH protocol.  Is anybody currently looking into this or otherwise
: working in this direction?

It looks very interesting.  Is there a newer draft than the one from 7
March that I found?