Hexedit is a full screen hex editor using the curses, ncurses , or pdcurses library. It's Free Software . Familiar setup, similiar to Nortan's Diskedit File Selection widget for selecting a file to edit. Allows Inserting and Deleting bytes from the file.
Highlights changes in the file in bold.
Fast boyer-moore string and byte searches. Undo - keeps track of all changes, reverting back to original always possible. This should run on any platform with a dialect of the curses library I'll support it. I wrote in all the features I wanted. I'll probably add it in.