A few pidgin/finch/purple plugins.
Tested against finch 2.6.6 on Ubuntu 10.04.

xssidle
-------
Set idle time based on information from X11 Screen Saver (such as
xscreensaver).

betterhistory
-------------
Shows recently logged conversations in new conversations.
When a new conversation is opened this plugin will insert
the last conversation into the current conversation.