"Pidgin, the multi-platform open-source IM client that used to
be called Gaim, has a lot of fans. The recent version 2.4.0 removed
the user's ability to manually resize the input box, and many of
those fans got mad.
"Version 2.4.1 made some improvements, but meanwhile the project
has forked. A set of developers have created Funpidgin is a version
of Pidgin with a manually resizable input box and four other
additional features so far..."