Looking for thermostats for a new house and was looking at this thread. I noticed there is a page on the Honeywell site where you can request an API:
https://honeywellhome.force.com/lyric/apex/Answers#!/feedtype=SINGLE_QUESTION_SEARCH_RESULT&id=906E0000000TXRuIAO
Don't know anything more about it than that... Would potentially be interested in the Honeywell thermostats but not if you have to try to keep up with webpage changes (not criticizing the plugin - just that an API is so much more reliable...).
thanks,
Aldon