We're working on restoring it.  We'll let you know when it's back online.
 In the mean time you can use one of several mirrors listed below.

Tully


   - Asia:
      -

      Tokyo, Japan <http://ros.jsk.imi.i.u-tokyo.ac.jp/roswiki/>
      -

      Tokyo, Japan (tarball) <http://mirrors.go-part.com/ros/>
      -

      Tokyo, Japan (tarball - ftp) <ftp://mirrors.go-part.com/ros/>
      -

      Tokyo, Japan (tarball -
rsync)<http://www.ros.org/wiki/rsync%3A//mirrors.go-part.com/ros/>
      - Europe:
      -

      Freiburg, Germany <http://ros.informatik.uni-freiburg.de/roswiki/>
      -

      Lisbon, Portugal <http://ftp.isr.ist.utl.pt/pub/roswiki/>
      -

      Barcelona, Catalonia <http://devel.iri.upc.edu/docs/roswiki/>
      -

      Porto, Portugal <http://www.isep.ipp.pt/roswiki/>
      - North America:
      -

      College Park, Maryland <http://mirror.umd.edu/roswiki/>
      -

      Philadelphia, Pennsylvania <http://www.pennros.org/> *(www.pennros.org
      )*
      -

      Austin, Texas <http://www.cs.utexas.edu/ros/>