listening in on this conversation, it seems to me that Marshall is talking
about "conferencing" in a sense which includes a lot of different
mechanisms, the premier one being instant messaging, while Jon (and the
XCON charter) speaks about "conferencing" in a sense that starts out
assuming that voice is included, and that video is the logical next step,
while conferencing based on IM, if thought of at all, is regarded as a
small side issue.
I don't know how to add markers to the charter to make it obvious how the
word "conferencing" is intended here, however. And it may not even make the
issue go away.
And, of course, I may have misunderstood the charter (or Marshall).
Harald