Kopfloss for headless JavaScript testing

Kopfloss for headless JavaScript testing

Not being content with browser-based testing - it disrupts my workflow and complicates automated testing - I've written a set of small scripts to run QUnit tests from the command line (using Spidermonkey or Node.js - or potentially any other JavaScript engine):
http://github.com/FND/kopfloss
Some background is explained here:
http://fnd.lewcid.org/blog/archive/157

I figured this was worth sharing here, and would appreciate feedback - constructive criticism included!