Despite a recent claim to the contrary which reached this forum,
there is still one logo which is non-free. The Debian Official Use
Logo is still only distributed under a restrictive and confusing
license. The information on the website is still up-to-date:
What *has* changed is the situation of the Debian Open Use Logo flavor with the word "debian". This flavor is now also free, meaning any flavor of the Debian Open Use Logo can now be distributed in main.
That being said, the Debian Official Use Logo, the only non-free logo remaining, is rarely used. Its status is being discussed: https://lists.debian.org/debian-project/2012/10/msg00002.html
Note that our logo terminology can be confusing (see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=689756 for details).