In this case, a visual user interface can be a great complement to a voice - first user experience. (developer.amazon.com)
At first user testing seemed to me like this complex high - investment, time - consuming thing, involving heat mapping and special software with dozens of people. (slaw.ca)
One of the very first user requests we ever received asked us to remember where they had stopped reading on any device so they wouldn't have to. (safaribooksonline.com)