Many of the standard protocols for the Internet of Things suffer from the significant fault that they are unable to connect devices from separate manufacturers in a coherent way. It is a struggle to get certain products from different brands to interact in the way that a smart home, by definition, should work.
Consumers must either buy all their products from a single source, (infuriating, considering the number of companies and their segmented portions of the market) or purchase a hub that can “talk” to all the devices at once. But then there is Apple HomeKit. Instead of acting as a multi-lingual hub, the new protocol translates all the languages into a uniform dialect for the benefit of interoperability, with much more application potential.
Learn more about the IoT benefits of Apple HomeKit here: http://zatznotfunny.com/2015-06/meet-homekit-the-hubless-hub/