M.A.M.E./M.E.S.S. Catalog / Launcher II - also referred to as QMC2 - is
the successor of one of the first UNIX MAME GUI front ends available on
this planet called QMamecat (derived from MAMECAT, which was text-only).

QMamecat was based upon Qt 2; its development was frozen in 2003. QMC2
has been rebuilt from scratch as a Qt 4 project. Parts of the design and
code were inspired by its predecessor, but it's not just a remake. We
tried to make the new design as flexible as possible to minimize
dependencies from front end and CLI related MAME changes, which was a
major deficiency of QMamecat. QMC2 now uses a template based emulator
configuration scheme, which can easily be enhanced with additional
command line options (defined in an XML template file).

QMC2 is now built with Qt 5, and currently supports MAME on Unix,
Mac OS X, and Windows.
