I first saw this machine, the JetSteam Ai-1, at the SCAA (Specialty Coffee Association of America) show in Long Beach. It is very cool and minimal looking — most of the guts (boiler, pump, etc.) are hidden below inside a cabinet, so only the controls, portafilter holder, and steam wand are mounted on the counter. They claim serious temperature stability, thanks to dual PID devices (one for water boiler, one for steam).
Its designer Corey Waldron has been working on it for over 7 years, and people are guessing it’ll cost around $6k, but I haven’t heard anything official. Here’s an action video.