Gfract is a GTK-based fractal program that implements the standard Mandelbrot and Julia sets. It features infinite image size with infinite anti-aliasing if you have the memory for it, Julia instant preview mode, user-specified coloring algorithms, and PNG support. For palette files it uses the same format as Fractint does, except that it supports arbitraly large palettes.
Blyte is a program for writing movie screenplays. Compared to a normal word processor, it is easier, faster, and more efficient for writing scripts, since it knows how scripts are put together. It can thus predict what you want to do next, automatically find errors, format the script correctly, and much more.