Anybody know anything about this?

http://www.steppir.com/

I saw the "teaser" ad for Steppir in the December CQ magazine and went to the website for information on their new portable antenna.  This seems like it could be a nice option for HOA-restricted hams like me who also work portable.  The question is: will it work?   What will it cost?  I guess we have to wait until Spring to know for sure.  I would be curious what the Antenna experts think.

73 de John, W7SAG