Although the hose can never kink (everyone makes that inflated claim), I think that virtual water is a scam.

What would Marshall McLuhan say? The Medium is The Message?

This will have subtle ways of changing things. One day we will look back and remember hanging around the water cooler. At that time I predict everyone will have their attention focused on their nozzles and will be hosing everything down just because of the novelty, and ignoring the fact that not everything needs to be drowned.

Those of us who have been around long enough will recognize that the concept isn't new; Ronco's Shower In A Briefcase was a great idea but the market wasn't ready.