The author would like to thank Björn Wesen and the staff of Axis Communications AB for designing the original JFFS and releasing it under the GNU General Public License -- and in particular for then answering a stream of silly questions about it.
The author is also grateful to Red Hat, Inc., who for some reason took it upon themselves to actually pay him for playing with this stuff.
Also deserving of a special mention is Vipin Malik, who has done a wonderful job of testing JFFS and JFFS2, often managing to break the latter when it finally seemed to have reached stability.