drupal is an old established and very popular php-based cms. I set up a testing drupal site on IIS/windows some years ago and played with it for a while. I think it's a decent choice for a high-traffic site like http://www.whitehouse.gov but it's far from the "This is state-of-the-art technology and the government is a participant in it." quote taken from the article. Drupal is old, stodgy, and reliable technology, just what you want on a busy site.
I like it that the administration is giving a nice public shout-out to open-source applications.

So what are you considering new in CMS? Joomla?

Joomla? You mean that reworked fork of Mambo? It's old and stable too. And being an older and stable technology is a "good thing", not a complaint.
Anyway, technologically speaking I think ModX 2 (the Revolution version currently in beta) is much more cutting-edge than any other cms app I've looked at. The 1.x versions are interesting too.

lol yes, that reworked fork of Mambo. I was using mambo till the devs split and made joomla and so I moved to joomla.
Joomla and Drupal are the more popular CMS's I hear about, so hence I wanted to know what was newer. Never heard of ModX. Looks good tho.