Right on. The ability to simply know what's going on eliminates the need for most of the frivolous stuff that destroys productivity. Communication is fundamental. People are too quick compromise on that simply because we have fancy technology, and because they can't stand the thought of sharing a building with other people.
But be careful about stuffing everyone in a war room. It worked out for you, awesome. I can see it working great for crunch time too. But it only works if you have the right people in the room. I'm not for cube farms, but I'm not for a complete lack of personal space and/or privacy either.
There's got to be a better middle ground. Maybe instead of having cubes, have walled-off areas with smaller groups of people. That, at least, allows people to separate themselves from those who they are incompatible with, and allows you to isolate the Pig Pens and Chatty Cathy's. There are people I work with that, although I like them, I'm glad I have some sort of separation from them.
Oh, and in a war room it sucks to be the guy with his monitor facing the manager's desk. That's just wrong.