Agreed. It is interesting how "up in arms" so many people are getting. I've never used TDD and have been very successful both in the startup world and enterprise world. I used to think I was "inferior" and had to keep quite about my lack of TDD. At least DHH has "put a voice" to our kind.

I span that weird space between product and engineering though. So most of the time I'm hacking in something like "prototype" mode, so TDD just makes no sense. I approach it more like sculpting. I'm slowing hacking away at this block of marble to produce an elegant "beautiful" product. Once it start to take shape I can create tests and specs to define the learnings and creations that I've made.

Tests first? It just doesn't work for me.