While I agree that index cards and board markers are maybe best in
design, I can follow the logic of that LnF author. There is more to
shipping working software than what you can find in research papers and
academic discussions.

If you have to hand out half-finished software, e.g. if you do a series
of early deliveries to QA, alpha and beta testers and the gold owners,
and if you want to indicate that the GUI implementation (not the design)
and/or the application logic isn't finished, then this LnF is a clear
statement.

I have been in the situation myself a few times, were people thought the
application was done at the very moment the main window popped up the
first time. I wouldn't have used this LnF, because the statement is IMHO
a little bit to strong, but I thing his idea is good.

/Thomas