It's quite interesting to see what happens when you post off a request into the ether and wait. So far, 45 people have responded and 56 haven't.
The following people have agreed to the GPL: Asger Alstrup <aalstrup () laerdal ! dk> Heinrich Bauer <Heinrich.Bauer () t-mobile ! de> Georg Baum <georg.baum () post ! rwth-aachen ! de> Lars Gullik Bjønnes <larsbj () gullik ! net> Johnathan Burchill <jkerrb () users ! sourceforge ! net> Matej Cepl <matej () ceplovi ! cz> Matthias Kalle Dalheimer <kalle () kdab ! net> Hartmut Haase <hha4491 () atomstromfrei ! de> Bennett Helm <bennett.helm () fandm ! edu> Claus Hindsgaul <claus_h () image ! dk> Michal Jaegermann <michal () ellpspace ! math ! ualberta ! ca> David L. Johnson <david.johnson () lehigh ! edu> Amir Karger <amirkarger () gmail ! com> Michael Koziarski <koziarski () gmail ! com> Felix Kurth <felix () fkurth ! de> Rob Lahaye <lahaye () snu ! ac ! kr> Jean-Marc Lasgouttes <jean-marc.lasgouttes () inria ! fr> Angus Leeming <leeming () lyx ! org> Edwin Leuven <e.leuven () uva ! nl> John Levon <levon () movementarian ! org> José Matos <jamatos () fc ! up ! pt> Iñaki Larrañaga Murgoitio <dooteo () euskalgnu ! org> Daniel Naber <daniel.naber () t-online ! de> Pablo De Napoli <pdenapo () mate ! dm ! uba ! ar> Allan Rae <rae () itee ! uq ! edu ! au> Garst R. Reese <garstr () isn ! net> Christian Ridderstrom <christian.ridderstrom () home ! se> Michael Schmitt <michael.schmitt () teststep ! org> Eulogio Serradilla <eulogio.sr () terra ! es> Lior Silberman <lior () princeton ! edu> Andre Spiegel <spiegel () gnu ! org> Jürgen Spitzmüller <juergen.sp () t-online ! de> John Spray <jcs116 () york ! ac ! uk> Peter Suetterlin <P.Suetterlin () astro ! uu ! nl> Kayvan Sylvan <kayvan () sylvan ! com> Reuben Thomas <rrt () sc3d ! org> Dekel Tsur <dtsur () cs ! ucsd ! edu> Matthias Ulrichs <smurf () smurf ! noris ! de> Marko Vendelin <markov () ioc ! ee> Martin Vermeer <martin.vermeer () hut ! fi> Jürgen Vigna <jug () lyx ! org> Herbert Voss <Herbert.Voss () alumni ! tu-berlin ! de> Andreas Vox <avox () arcor ! de> Stephan Witt <stephan.witt () beusen ! de> Henner Zeller <Henner.Zeller () freiheit ! com> The following people have agreed to the Artistic Licence: John Weiss <jpweiss () frontiernet ! net> The following people are yet to respond but appear to have valid email addresses: Alejandro Aguilar Sierra Pascal André Yves Bastide Hans Bausewein Alfredo Braunstein Albert Chin edscott Matthias Ettrich Baruch Even Ronald Florence Stefano Ghirlanda Helge Hafting Claus Hentschel Robert van der Kamp Victor Lavrenko Ling Li Roman Maurer Tino Meinen João Luis Meloni Assirati Carl Ollivier-Gooch Panayotis Papasotiriou Zvezdan Petkovic Kornelia Pietsch Geoffroy Piroux André Pönitz Alkis Polyzotis Thomas Pundt Adrien Rebollo Bernd Rellermeyer Michael Ressler Miyata Shigeru Ben Stanley David Suárez de Lis H. Turgut Uyar Pauli Virtanen Mate Wierdl Serge Winitzki Xiaokun Zhu The following people are yet to respond and may or may not be the right person (the address we have is invalid and the one I posted to is grabbed off the internet): Claudio Coco Bernard Michael Hurley Martin Konold Francesc Burrull i Mestres We don't have a valid email address for the following people: Maarten Afman Graham Biswell Christian Buescher John Michael Floyd Hartmut Goebel Bernhard Iselborn Peter Kremer Bernd Kümmerlen Dirk Niggemann Joacim Persson Hubert Schreier Ivan Schreter Edmar Wienskoski Jr. Huang Ying -- Angus