OTF2TeX / News: Recent posts

OTF2TeX is a program to convert OpenType typefaces to the format used by LaTeX.
I'm trying to figure out how to license the program before I actually release the files. The issue is, part of the program is a bash script, and the other part is LaTeX code. The LaTeX code is derived from some code that's licensed under the LaTeX Project Public License. I'd like to distribute at least the shell script under the GPL, but I don't think I can distribute the LaTeX part under the GPL (if I've read the LPPL correctly). If anyone reads this and has any thoughts, please let me know.
Thanks.