More case of Voice Assistants are a front-end to services and Amazon sells services, so saturation of that market works best for them. So with mobiles, why not

More case of Voice Assistants are a front-end to services and Amazon sells services, so saturation of that market works best for them. So with mobiles, why not sell services for all those ecosystems and with that target more people across all flavours of mobiles. Win the interface (Voice Assistant) battle and your have a massive advantage in the services that will just work compared to services that take some hacking about. Want to play Amazon music upon alexa - done, want to play Google Play Music using Alexa - let me write some code, setup a service.....effort. Most users want simple, easy, just works and if they can win that battle, then that is a far bigger market than mobiles. Bit like - why focus on selling a form of car when we can sell fuel to all the cars and they want to win that market. Maybe the whole Voice Assistant market may go like the whole VHS/Betamax market did, cheap, works and may be better offerings but market saturations wins in the end.