Just to clarify: mixmh has a command called "view as multipart" that
breaks a message up into content-piece chunks, and lets you view all
the parts one at a time. Rather like the mhn part of mh, in fact.
A student is now working to extend this (using some nice widgets) to
support actual viewing of interesting content-types like richtext and
images.
We did consider dropping anything unknown onto metamail; it is likely
that it will be included in a future version.
Oh, and BTW, what Pekka copied was the original announcement for MIXMH.
It seems that ietf-822 strangely enough slipped my mind when I was
sending it out.
Mail any specific bugs to mixmh-bugs(_at_)uninett(_dot_)no, mail
mixmh-info-request(_at_)uninett(_dot_)no to get on the discussion list
mixmh-info.
Harald Tveit Alvestrand