An arm of the military considering FOSS?

In the article linked above, the Navy is now being mandated to consider open source software solutions. This is a breath of fresh air. Could the government actually be doing something to curb costs & government spending? I hope that this mentality infiltrates the rest of the government since we know that open-source solutions are, and always will be, cheaper for both small & large organizations. I'm sure that the Microsoft lobbyists are out in force trying to stop this since we all know that the government's IT buying power is something astronomical like $250 billion & they don't want to be left out in the cold.

I'm optimistic that once the Navy sees both the monetary & stability benefits of what FOSS can do for them, that it'll spread like wildfire. Here's to government finally making some wise financial decisions.