The new Home app in iOS is pretty great. I can now control my Lutron Caseta switches and Philips Hue lights from within the same app.
One big missing feature is the ability to set PICO remotes as accessories in the Home app, and be able to use the Home app's automation function to add actions to PICO remotes. This would be a hug improvement and would allow PICO to become a physical controller/remote for any HomeKit products. Would make Caseta a must have in any HomeKit setup :)