TEX previewers on other platforms use bitmapped versions of the TEX fonts
stored in pk files. It would be possible to add support for these files to
DVIview.
The advantages of pk file support are that you'd be able to use any TEX font and the output quality of documents (both on screen and printed) would
be better. The disadvantages would be disc space (pk files take a lot of
space) and speed of loading and scaling new documents (pk files need to be
created if they don't already exist). In particular, DVIview supports
arbitrary scaling factors, which could cause large numbers of
different-resolution pk files to be produced over time. DVIview would
also support anti-aliased pk fonts, which would mean that the pk files
need to be generated at higher resolutions, which means more disc space :-( ).
Postscript output via !Printers would be horrendous (and probably unusable)
because it wouldn't be possible to declare pk fonts in the Postscript
header. Finally, Draw file output would be horrible because characters would
have to be represented by sprites: printing or scaling the diagram would
give a poor-quality result and the diagram would be extremely large.
Given this list of disadvantages and the effort that implementation would
involve, I'm inclined not to bother with pk support. However, if there were
enough demand I might reconsider.