CELTX is this really cool cross platform screenwriting program. Part of what makes it cool is it's open source. It's built on top of firefox. It has a server function where you can basically pick up the script anywhere, or collaborate with anyone.

I really don't have the time to start setting up a scratchbox environment. Is anyone out there willing to give a shot at compiling it for N800? The source is available at www.celtx.com.