A new version of portpeek can be found here (version 1.6.7) or emerged through portage.
Changes:
The way I was checking if a package was masked was incorrect. If you had a package in package.unmask and it was also in profiles/package.mask, the code was incorrectly surmising the package was stable.
Bug reports and patches are always welcome.
It’ll be soon keyworded under ~x86-fbsd as well.
Regards
dav