I still have a hard time buying into the lean startup method hook, line, and sinker. I think there is quite a bit of evidence in support of it, but a lot that flies in the face of it as well.<p>Certain features, for which presentation isn't critical, I would certainly want to deploy early and often. But that also seems to be contradictory to the dictum "execution is everything." Of course building something with excellent execution quickly is ideal, but if you release your product before it is what you believe is your best work, then aren't you kind of hurting what little chance you've got?<p>To draw an example, Palm had a touch screen phone and apps available for download in 2004. But their execution wasn't very good, and their software provided an awful experience. In 2007 Apple released the exact same idea but with far better execution, and the rest is history.<p>I'm not saying the lean startup method doesn't work, I just think it is highly dependent upon the product strategy.