As of 2012-2-23, the city of Munich has converted 10000 of its PCs to GNU/Linux and almost all of its 15000 PCs to OpenOffice.org 3.2.1, ODF standard and a Wiki distributing a complete set of templates for all their offices. They no longer have random applications scattered throughout the organization but have most applications centrally managed with many web applications amongst them. Where they used to have 900 macros they now have 100. By the end of 2012 they expect to have the migration finished.
see Limux IT Blog