After 19 years, MAME is now available under an OSI-compliant and FSF-approved license! Many thanks to all of the contributors who helped this to go as smoothly as possible!

We have spent the last 10 months trying to contact all people that contributed to MAME as developers and external contributors and get information about desired license. We had limited choice to 3 that people already had dual-license MAME code with.

As a result, a great majority of files (over 90% including core files) are available under the 3-Clause BSD License but project as a whole is distributed under the terms of the GNU General Public License, version 2 or later (GPL-2.0+), since it contains code made available under multiple GPL-compatible licenses.

If you have contributed to the MAME source code and believe we have not contacted you, please reach out to us at our contact page.

Please note that MAME is a registered trademark of Nicola Salmoria, and permission is required to use the "MAME" name, logo or wordmark.

http://mamedev.org/?p=422

During a freaction of a second I meant to read Maemo is now free and open source..

That will never happen.

Why so negative?
I have a CD above in the attic with all opened sources.
And we have still a few devs interested enough to re some closed blobs (many thanks here again!)

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I know, I know, no need to argue, discuss ...