HP has now posted the English manual (revision date says August; the one previously on hpcalc.org was dated January).
HP20b page
They have also posted a true type font.
HP20b download page
I think that font is the one used in the manual.
If anyone wants the font used in the learning modules, shoot me an email. I personally find the one used in the modules to be MUCH more readable than the one in the manual.