The release candidate for Writeup 2.0 has been released on sourceforge. See sourceforge.net/projects/writeup/files/ for the download page. New features kept creeping in and delaying the release, but this looks good.
The third release candidate for Writeup 2.0 has been released. The binary can be downloaded from Google code Writeup binary v1.94.03. It will be made available on sourceforge in a few days along with a new shell script for invoking it that extracts multiple commands from the source file and runs them.