A little nit I noticed today The release announcement for 1.3.3 says: - Added Microsoft Windows support. See README.WINDOWS file for details.
While the FAQ entry http://www.open-mpi.org/faq/?category=supported-systems#os still says
There are plans to support Microsoft Windows in the not-distant future. -- Paul H. Hargrove phhargr...@lbl.gov Future Technologies Group Tel: +1-510-495-2352 HPC Research Department Fax: +1-510-486-6900Lawrence Berkeley National Laboratory