I applaud your moxie, @ruster34, and agree with your desire to remove extraneous workarounds (IFTTT, VPN, Tasker, Webhooks, etc.) for something that really ought to be straightforward.
Can’t help wondering if @Sorin and his team could one day implement a long-term FREE solution in the form of a Vera-to-Vera communication structure – sort of an in-house GetVera VPN to which each hub could ‘subscribe’ and thereby pass basic status information, like ‘House Mode’! (tl;dr <cough> MQTT** <cough>)
Fact: Synology NAS devices do this routinely. No reason Vera devices should not.
Barring that, of course we’ve all been waiting for true IFTTT implementation, but know that it’s not really going to happen at this juncture.
Which leaves my mind creatively wanting to offer you a solution using another third-party, Web-based database solution (I understand several exist just for this kind of ‘state’ passing, but I have never tried them with Vera). The first and best prospect that comes to the fore is GOOGLE DOCS — we’d just have to conceive an easy way to roundtrip simple text strings to a spreadsheet from one Vera to another.
In the meantime, I see no reason why the updated Vera Mobile app (running on any mobile device, not necessarily your phone) could one day accomplish this task, since the app can already manage multiple controllers. I just don’t know if it can yet manage them at the same time!!
**Also see: MQTT Client Plugin