My guess is that the Sensor's IR window still isn't ready for production.
I've been trying to help with some of the issues, but Ceci is our main info conduit these days, and she doesn't appear to be all that technical, so I don' t know if the engineering team is hearing anything I'm saying.
Of course, at this point I'm having trouble avoiding being a bit snarky here and there, so that may be diluting my message...
But on a personal note, I just got off the phone with the leader of another KS project I've been freely advising, and he wants to bring me on with equity participation! It started with their plastic lightpipe, but I really hope they let me do at least some of what I love most, which is writing embedded real-time software.
THIS is why I like open projects (especially projects that are more open than WigWag): First, I can really help, and I truly enjoy doing it. Second, sometimes, very rarely, they help me in return.