The Business Week article 'So Much Fanfare, So Few Hits' misses a great benefit of release early, release often profligacy: each release consumes competitor resources. In this case, I suspect disproportionately. This brings to mind the OODA loop.

"The key is to obscure your intentions and make them unpredictable to your opponent while you simultaneously clarify his intentions. That is, operate at a faster tempo to generate rapidly changing conditions that inhibit your opponent from adapting or reacting to those changes and that suppress or destroy his awareness. Thus, a hodgepodge of confusion and disorder occur to cause him to over- or under-react to conditions or activities that appear to be uncertain, ambiguous, or incomprehensible."