QT can refer to
several things. There's the QT
widget set made by
Troll Tech and used in
KDE. That used to be
evil and
not free so to
GNU purists it was
the devil. Since then the
X11 libraries for it went
GPL in version
2.2. I'm still
critical of it, though, because it still
sucks, still uses
heavily preprocessed C++, and still isn't free for
non-
X11 platforms like
Win32 or
framebuffer. QT is also a
common abbreviation for
QuickTime among Mac buffs.
This is also used by
idiot AOL-using
teenage girls to mean "
cutie".