What does it take to build an application where the UI is strictly voice? While at NDC in London, Carl and Richard sat down with Heather Downing to talk about her experiences building voice-driven applications with a variety of tools, including Alexa and Google Voice. Heather digs into the challenges of thinking through what the voice interface is really good at, versus more traditional screen, keyboard, and mouse driven software. This leads to a broader discussion about getting away from the desk entirely, into highly mobile and standing environments where the keyboard is just not a practical option. Voice-driven apps are a different class of app entirely - does it make sense for your organization?