Please note: I haven't read the darn book, I'm simply reacting to the quote. That said: while I agree with their basic ideas of keeping things small and worrying about scalability later, and rapid prototyping and iterating between users and designers/developers, as usual I think these clever lads have swallowed too much of their own kool-aid. My guess is that they're only considering their sorts of projects, and not those which benefit from an extensive requirements and specification process before a programmer ever lays eyes on the sucker. Just my 2p - now it's time to go read those free on-line chapters 8=} Zj