All developers creating hardware for HomeKit must follow Apple's MFi guidelines and incorporate the HomeKit technical specifications. As outlined by 9to5Mac, some of Apple's final HomeKit specifications cover the pairing and security of Bluetooth LE and Wi-Fi connected HomeKit accessories.
While we've already seen several products that will take advantage of HomeKit, including a smart USB charger and a line of connected home sensors, Apple's HomeKit supports a wide range of products like lightbulbs, locks, fans, thermostats, power outlets, garage doors, and more. Apple has also announced several partners already, including Philips and Honeywell.
As Apple has worked to ready HomeKit for hardware developers, it has also been working on the software front. The latest beta of the Apple TV software, released alongside iOS 8.1 beta 2, includes explicit support for HomeKit, turning the Apple TV into something of a home automation hub.
The new Apple TV software turns the Apple TV into a remote access HomeKit peer, and as described by AppleInsider, this allows HomeKit devices to sync with the Apple TV, possibly giving users a way to control connected devices even when away from home.
In the future, an updated Apple TV set-top box could include long-rumored features like Siri support, letting users easily control HomeKit-connected devices from their living rooms through the Apple TV dashboard. HomeKit has been designed to work deeply with Siri, letting users control HomeKit hardware via voice commands.
At its Worldwide Developers Conference, several potential uses for HomeKit were demoed. For example, when a user has HomeKit-compatible hardware installed, Apple's voice assistant Siri can be asked to "Close the garage, "Turn off the lights," or "Lower the temperature."
Apple has plans to hold a Made for iPhone (MFi) summit November 12 through November 14, providing accessory manufacturers and developers with information on HomeKit, iBeacon, AirPlay, and more, and with the finalized specification now available, we should be seeing additional hardware products with HomeKit support in the near future.