JULIFOS  The best OSX hex editor available. Not full of features (even when I wouldn't use most of them in the real world), but fast and reliable.

Would love to hear if any plugin exist!  
(Version 1.0.7)

J.W.  Very useful. This is the only hex editor I've found that handles different text encodings.  
(Version 1.0.6)

JEDIK  It's very nice, and free. Suggestions for the next release: add a diff function (shows the changes related to another file). Kudos! =)  
(Version 1.0.6)

GSNXN  I like this app a lot, but the one thing that's keeping me from using it is the fact that it lacks (as far as I can tell) any means of authentication for editing files with strict permissions. Do you have any plans do this (like, a SFAuthorizationView in the toolbar or something) that would allow users to edit system files, etc?

Thanks,

Geoff

PS I tried to use the feedback forms on your website, but the "connection refused".  
(Version 1.0.5)

AMNESIC  I was using HexEditor before but this tools is far better . Congratulations to the author. (the only criticism should be the choice of the icon cut, copy, paste and save who is little bit to much Windows like for an old mac user lile me :-) )   
(Version 1.0.4)