I have a feeling Joe left the company and one of his last actions was to give all the developers their own API key. I actually got an email myself, instructing me to go to some web folder that required me to authenticate using a Microsoft Live account, which doesn't really work for me as I'm more of a Linux guy. I emailed and I did PM him months ago about the issue I had getting to the information that was meant for me, but same as you no response.
I'm okay with it though. The code works. The way I see it, it is most likely more of an issue for Honeywell that they can't see what type of application is connecting to their service.