Great article. Definitely agree that MongoDB is awesome for prototypes, but I don't believe it goes beyond that. The fact that work will still need to be done when migrating a (collection I believe their called), IE adding fields and such will still exist.
To be fair, this article was written asking for a perspective, not offering one. And funnily enough, since then I've kind of become convinced that MongoDB has solid use cases. Anyway, I personally find no use for it; maybe someday I will. :-)
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