I am impressed again and again with the CBC. Most recently, I became aware that CBC is offering streaming audio of their radio stations via Ogg Vorbis! I can't wait until they give up Windows Media altogether.
In all seriousness, I think it is a responsibility of public corporations to at least investigate, if not mandate, open source software solutions to these common problems. If the government can solve its problems without spending the ridiculous amounts of cash required for licencing fees required for the Microsoft (or other closed source) equivalents, then I'm all for it.