In some cases there are very good reasons. One you might not have thought of, but which another [better] article raised, was that some tablet OEMs are waiting

In some cases there are very good reasons. One you might not have thought of, but which another [better] article raised, was that some tablet OEMs are waiting on next generation chips from component suppliers. Others are waiting for Gingerbread. Others (e.g. Augen) are just incompetent, but I think that's a rarity.