Finally got out twill 0.8.2. In addition to the usual bug fixes and improvements, this version should be able to parse all but the very worst HTML pages. We'll see how that holds up under stress ;).
I've also added a very frequently requested set of features: return values from the simple scripting functions. While these are useless when using the twill language, they are useful to Python programmers who want to call the functions.
UPDATE: Just posted an advogato article on testing CherryPy and Quixote Web apps with twill using wsgi_intercept.