PGP Individual UID Signer makes signing all the UIDs on all of the keys at a PGP Keysigning party much simpler. It prompts for verification fingerprints, and then signs each UID on each key separately and PGP/Mime encrypt-emails them to their recipient.
- per-UID keysigning
- PGP/Mime encrypt signed keys to users
- per-key levels
I think CAFF (manpages.ubuntu.com/manpages/precise/man1/caff.1.html) is more mature, already packaged in distros and e.g. the mail templates are better tested (it does not mail around the signed attachments with same filename for every signature like Pgpius does..)