myspace, craigslist? I think he means that eventually best of market will win. Not sure I agree but some of the examples for it are compelling.

I think it just depends. I disagree with his implication that one can't improve the product after they launch, but I guess he is talking more about hardware products.

Like with Betamax?

This is a fallacy.

Best to market wins if the first to market doesn't have a competitive edge or the establish barriers of entry.