I would like to try to patch
amsppt.sty AMSTeX style file to make it
usable with XeTeX and non-Latin languages (Cyrillic). It looks like i need
to replace the following CM fonts or font families with Unicode aware ones :
Whis ones can i use instead, and where can i get them?
Another part of this question is how to use new fonts in
amsppt.sty. The lines where the fonts are selected look like this: