Well, I won't share the fun interplay behind the scenes, but I will say there's an update in the review. WakeMate shipped me another wristband to try, the third, plus another new version of the app. This performed no better than the previous ones.
There'll be a new HN thread soon enough, and they always blunder just enough in each that their company stays at log(n) on the Cuil scale (where n is the number of threads).