i suppose i can respect that view on things...
but, they have been doing it... they do generally explain when there is a delay, etc.
they have a visual graph on one website (i dont know the link) that shows their progress.
also remember, they have been putting out updates leading up to 4.0 almost every year, for the past several years.
you also have to keep in mind TUS is not the designated forum for DC and CS to discuss updates, they dont really have much ties to TUS, or any obligation to inform TUS members of their progress, maybe someone else can link you to the websites with more update information and that graph i mentioned, but i do not know the links.