Peter M
The only reason why I still keep asking for dvi, is the good xdvi viewer.
I agree. xdvi is what prompted me into trying dvi mode again (and investigating dvipos), because of its excellent anti-aliasing. The only pdf viewer whose rendering quality might be comparable is the 'apparition' viewer, part of the fitz http://ccxvii.net/apparition/. Not ready for prime time yet, but it has lots of potential.
If there is something similar for pdf, then yes: you can drop dvi support!
Even then, you would lose source specials. I haven't figured out a way to do it, despite cracking open (via xpdf) the PDF reference manual. I thought about doing with annotations, having pdftex/ConTeXt insert the pdf literals. However, the annotation dictionary doesn't have a cross-platform way of calling a script. It has enough slots to do it for Windows, but nowhere else. At least, that was what I gathered, but maybe a longer look or a shorter look by PDF experts might give a more hopeful conclusion. -Sanjoy `Not all those who wander are lost.' (J.R.R. Tolkien)