All government computers should run open-source, free software licensed under GPL or similar and use universal, open standards for things like file formats. First, it's more secure and cost effective -- Linux/Unix viruses cannot spread the way those written for Windows do. Second, the software used and developed will be available to everyone for scrutiny, and public input can be given in improving that software. Third, the government/public will actually OWN the software, rather than paying companies like Microsoft who retain ownership of the software on our (ie, the public's) computers.
This also means no .doc files but rather .odt files and other similar formats.