This plugin allows you to add Twitter-like @reply links to comments, including a preview of the comment replied to. MASHUP of this: http://www.spreeb
Most of the code is taken from the Custom Smilies plugin by Quang Anh Do which is released under GNU GPL : http://onetruebrace.com/custom-smilies
Thanks to Guillaume Ringuenet who made the arrow graphics.
I didn't create anything new, and I do not claim so in any way. This plugin is just a feature I wanted and thought it could interest some other people.