The integration is a little trickier than what meets the eye. I've been asking exactly the same questions as you have for probably the last ten years, since we developed the Dr. Tong Louie living laboratory.
The idea was that yes, there's too much independent technology and not enough where all the information comes in to one place. It is possible to do. There are some software engineers, biomedical engineers who are working on those products, but they still have a ways to go. Again, the idea is that if they can solve that problem and make the device that will do a whole bunch of things at once, all of us are going to want to buy it.
The incentives have to be there. We need to talk to our funding agencies to answer to CIHR, to the Institute on Aging, and suggest to them that they should be maybe having a few special competitions on the technology development side of things for assistive products. Traditionally it has been more difficult to get research funding for that area. There are groups around the world that are working on it, but the funding has been limited.