PSAD and signature updates

Is it true that the creators of PSAD haven't updated the PSAD signatures since 2007???

Line 29 of my /etc/psad/signatures file:

# $Id: signatures 2129 2007-12-12 04:56:10Z mbr $

As well, at http://www.cipherdyne.org/psad/signatures, it is on line 28.

Dead project?  Not sure, but the signatures are old as hell!  While I don't think it's a usage deal-breaker, I'm rather surprised.  Does it need updated signatures?  Probably not, but every little bit helps, especially nowadays.  I'd much rather a developer (and package maintainer) be up-front about such things.

Emergingthreats.com sigs...

Quick note:

One thing I hate about emergingthreats.com sigs is the fact that the sigs have no real documentation. Yeah, I know there's a site (a few, in fact) that provide this (via opensource efforts), but I much prefer to not have to research each and every sig all the time I'm investigating something.