The current Recovery.gov site is running Drupal on Apache/Linux, and the site designers made at least a token effort to support current Web standards in the markup (while it is XHTML with a tableless layout, the W3C's validator did flag many problems when I checked it so it isn't perfect). :
On the other hand, the new prime contractor's Web site www.smartronix.com is running on Microsoft-IIS/6.0. They do not appear to be making much of an effort to support current Web standards (fixed, table based layout).
So who knows, maybe they will build a beautiful new site for that $18m, but I like the old site and will be sad to see it go.