How big is Tinderbox?
Just before Tinderbox shipped, nearly five years ago, I measured it and found it had 88,000 lines (excluding blank lines, libraries, and framework). Today, it has about 74,385 lines (though it does a lot more than it used to). This surprises me, and might be an artifact: I'm not completely certain that I'm using the same methodology. My guess is that it's grown a little, but not much.
There are currently about 940 classes of objects in Tinderbox. I used to know the 2002 number, but I can't find it today; I think the number of classes has likely doubled.