So, Home Depot are making a push into the home automation market in conjunction with quirky, there's a deal on for their home hub, and various components; buy two components and get the hub for $1, apparently (so says google)
The only reason I know this is that their product listing for the Iro mentions it right at the bottom; I was intrigued, so looked it up.
I suspect that the displays and so on in store are probably pushing the Iro along with the Wink app (though not in my local Home Depot, as I got the last one on the shelf ).
Word of recommendation here - stick with the Rachio app to setup and run the sprinklers, unless you have a pressing need to automate them to run on an event or trigger.
It's not just that the Wink app crashed on me 3 times in as many minutes. No, what I particularly liked was it crashing on my pressing 'start', and it only actually starting to spray after I restarted the wink app. At which point the wink app thought it was stopped, and didn't have any option to stop spraying....
Fortunately it crashed again at this point and I was able to hit start and stop again before it crashed a third time.
It'll probably be worth it in the long run; I can see someone bringing out a sensor that's compatible, and triggering a sprinkler run when the soil is dry would be excellent, as would a number of other options (there's a sensor that detects motion - "run sprinklers for 1 minute when neighbors cat is detected on the lawn" appeals greatly). But right now, it's a little too flaky.