Good summary here of the opportunities available to developers coding for the fast-growing voice-tech economy. With Apple stumbling over battery-gate, it would simple to say that the digital device scales have definitely tipped in favour of voice-recognition. But perhaps it's finally happening now. And it's a fast growing economy too. Have a read.
Two years ago, there wasn't nearly as much to do on Alexa and the market for making Alexa skills was worth a mere $500,000. Now, with more than 25,000 skills available, the market is expected to hit $50 million in 2018, according to analytics firm VoiceLabs. That's dwarfed by the mobile app economy, with global sales of over $50 billion, but Alexa is growing at a far faster rate.
https://www.cnet.com/news/amazon-alexa-economy-echo-speaker-google-assistant-siri/