Until I realized, just now, that the OP also wrote the article, I felt folks were treating him a bit unfairly.  Now, not so much.<p>Pegobry, your point is well taken; I'm an engineer myself, and I agree -- as Web frameworks mature, and engineering/development patterns level off, design becomes the differentiating factor.  And yes, provided your numbers are correct, Tumblr currently appears to be "winning."  Not sure whether the latter really matters, or whether it even supports the former at all, but it's a concept with which I happen to agree.<p>Your mistake was to post the article here, primarily since you wrote it yourself.  Most folks here are engineers who follow YC startups.  You might as well have posted a link titled, "Why Microsoft Is Kicking Apple's Ass" in an Apple forum.