In short: The Take 2 software means you can now stream music to an Apple TV, rather than just having it pull music to it. The important difference is that it now allows software like Airfoil to use it.
This removes the one (fairly major) lack that Apple TV had, from my point of view. I could now replace my Aiport Express if I wanted.
So, just one question: do we Right Pondians *have* the Take 2 software?
Jim