Randy Oliver wrote about it and mentioned that Dadant would be carrying the item. I called immediately on reading that only to find out that the order had been placed with the European manufacturer but had not arrived as the time I called and no decision about pricing had been made.
I think I'll order one, now that they're in and in the online catalog. I like the idea of being able to blow powder up between the frames and well as down between them. It also might make it so I don't have to stoop so much working the hives, that's a back killer for me on the days I can work the hives without the wheelchair.