Franz, thank you.
I'm hoping the 'big boys' (commercial users) are still pushing you guys, such that some day you'll produce a 'Gen X on Steroids' that includes or alternatively uses an Ethernet connection that simultaneously makes economic sense for your company.
More expensive thermostats (not Nest or Honeywell or Ecobee) are going this direction - just plug in the Ethernet cable and hard core Internet connectivity forever exists. We sell them to our commercial customers now and have noticed substantially less troubleshooting calls and problems. I changed over my tstats in my residence to Ethernet connectivity, and have noticed the improved reliability.
My home is on the DFW energy reduction and renewable energy annual 'tour of homes.' It was this past October. I included teaching visitors highlights of your Gen 1 product. Everyone coming here is in to solar PV, geothermal heating & cooling, measurement & verification tracking, and automated home control. Thus the Gen 1 controller fit in nicely with 'what are you doing to reduce costs' (in this case increasingly expensive water).
Glad to see business is moving along for you guys. As long as you're constantly 'working on the next thing' you'll be successful. Keep that list of ideas for Gen 3 and Gen X going. It's the companies that conclude they like what they offer just fine, and try to just 'cruise' that shortly find themselves out of business.