Interesting ideas, both the HEWS and the WaterBOB (Oh, it's YOU Bob!)

I like that they both fold away flat and small when not needed, and the idea of an integrated hand pump is very practical, too.

GarlyDog is correct that neither system appears to be mobile; they both look as if they couldn't be moved out of the bathtub once full. But I think that in home preparation, you can afford redundancy that weight and size restrictions would prohibit in a BOB or PSK designed for pocket or vehicle use; in other words, keep the bottled water, and fill up one of these puppies in advance of a storm, as well.

I'm going to recommend these systems to some of my friends who live in Hurricane Alley, as a supplement to their bottled water. If all else fails, the additional fresh water can be used for bathing and flushing the toilet, but it's nice to know you've got a high-capacity bladder of potable water should you need it.