Samsung's plans to have Bixby's voice functionality ready for the North American market in time for the Galaxy S8 launch didn't pan out, and the company had said that the feature would launch in the US sometime later in the spring. It looks like Samsung is on track this time, as it has started an early access program to let US customers try out Bixby's voice features on their Galaxy S8 and S8+.
Samsung is taking a limited number of applications, so you will have to try your luck by signing up at this website and wait for an invitation. The data it will gather during the test will be used to make improvements before Bixby's voice features are officially launched in the country, although there's no saying when the launch will take place. Spring's about to end in a matter of days, so Samsung will probably not meet the deadline, and we will hopefully not see any major delays.
For those unaware, Bixby's voice functionality is heavily embedded into Samsung's software and can let you perform a slew of functions by speaking to the phone. If it's possible via touch, Samsung wants it to be possible via voice, too. To see Bixby in action, check out these videos. Also see what we feel about Bixby here at SamMobile, and be sure to sign up for the early access program before Samsung stops taking applications.