As well as the previously announced news that you’ll need to on the console, in a Nintendo of America’s President Reggie Fils-Aime suggested that the app would be used for a lot more besides voice chat.
Smart (phone) justifications
Fils-Aime justified the decision to rely on the app for voice chat by saying that most people will have a headset that connects to their phone on them at all times.
As such using the phone for voice chat makes sense, as it means you don’t have to carry around an extra Switch-specific headset.
But while these justifications make a certain amount of sense for using the console while on…