The hope is that OpenThread will become the de facto connection format for Internet of Things devices that aren't explicitly Thread-certified (the certification program isn't going away). A smart home startup could not only use ready-made networking code, but submit changes if they think the tech could stand some improvements. Whether or not other companies take it up is another matter. After all, it's tempting to either cling to the most universal standards (even if they aren't ideal for IoT gear) or else write proprietary code. Would-be users will have to see that there's a clear advantage to using OpenThread instead of going their own way.