Havn't found anything yet... but I started project on SourceForge called CF2PHP http://sourceforge.net/projects/cf2php/ to develop a solution.
I'm trying to use Perl's HTML:Tree builder module which will expand a cf template into a structure of tags which can then be replaced with PHP syntax. So a <cfoutput> tag would be replaced with:
<?php echo "
And a </cfoutput> tag would be replaced with:
Then anytime a "#" was found with next to a string (that doesn't begin with a number) it get's replaced with a "$"... etc etc etc.
I really havn't done much work on it yet, so if anyone finds a better solution please post it.
Also, if you know some perl and would like to look at what I've got just email me.