It would be great if two Iro's could communicate as I have a location with 21 zones.
Thanks @jgmaine, we've had this request in the past and I'll be sure the product team gets it.
I'd love to see this as well. Is this a planned update?
There are no current plans. Will let you know if this changes.
I third this request. I have to juggle schedules between two Iros at two clients' houses. It gets pretty complicated as you don't want to have the two controllers accessing the water supply at the same time.