Digital BW, The Print

At my local bookstore today I just came across 'Photoshop 7 Artistry,'
the latest edition of that excellent reference, and it has only a single
example, in 4 pages, of taking a b&w image and getting a duotone-looking
image from it. But the book does not dwell on the issue of actual
output.

As a newcomer to non-darkroom printing, I am wondering if I could get an
idea (or URLs) relating to the quality of printing b&w images on inkjets
that offer quality-looking duotones. Last spring I viewed professionally
exhibited Piezo and MIS prints in the past, and I liked the output (not
loved them, but that's an issue related to my preferring the deep blacks
one can currently get in a convention darkroom). But I really wished
there was a way to duplicate the delicate toning of  darkroom duotones,
and the artist whose work was exhibited told me at the time that the
issue was problematical at the time.

Has this issue since been overcome/solved for inkjet prints?