I have an extremely strange bug. If I use Fontin font[1] with simplefonts 
module and enable export and protrusion, the hyphenation symbol is gone! 
Below is a minimal example that illustrates this.
\showframe

\usemodule  [simplefonts][size=10pt]
\setmainfont[Fontin][expansion=quality,protrusion=quality]
\setupbackend [export=yes]
\setuppapersize[A7]
\starttext
\input ward
\stoptext


See the attached pdf for output. On the fifth line the word presence is 
hyphenated but the hyphen symbol is missing!! I am using ConTeXt 
2011.08.26.

[1]: http://www.exljbris.com/fontin.html

Aditya