Yet another non-relational database. There definitely seems to be a trend in that direction, a market corner that the RDBMS's do not address convincingly. I would guess that for a general purpose system, which might have power users/report writers, a full-fledged database makes sense, but for a turnkey system where speed is important and there is no need to expose too much of the internals to the users, this type of offering is useful.
