I understand that this year's Google Summer of Code project to provide 
journaling support to FFS wasn't successful, however I feel that the project
is worthwhile and would love to see it come to fruition.

What are the issues with licensing with regard to using a compatible on-disk
format to Solaris' UFS, which is the idea mentioned at 
http://www.netbsd.org/contrib/projects.html#j-ffs ?

Thanks,
Matt