To go along with this post, I finished the first working version of my pidgin-identica-status plugin today. It pulls an RSS feed from identi.ca, and sets the latest entry as your status in Pidgin.
It feels like a hack to me; the Perl API for Pidgin is poorly documented. I set up a Google Code project for it, and would welcome contributors to clean up the code, ad functionality, etc…
http://code.google.com/p/pidgin-identica-status/