Well, I for one have to give a huge round of applause for the lib. LED's are great, but that takes a ton of wiring. LCD's aren't much better. The ability to use a TV as an output device- something that all of us have already, no investment required- is just so dang useful for small-scale stuff that it's amazing. It's an eye-grabber on a big-screen TV, and also PERFECT for using with portable LCD screens.. if you have kids, you probably have a portable DVD player.. and most have a video-in connection. After the kids smear a peanut butter sandwich into the optics and mechanics of the DVD drive, the screen still works GREAT as a monitor, with it's own rechargable battery pack (which can also power the Arduino!).
Bravo!