I see the article as showing what could be done even with today's technology. The only bottleneck I see is lack of high speed wirless connectivity and a large user-base.

It wouldn't surprise me at all if this becomes standard in 50-100 years as you can't really stop the march of technology and miniaturization. Will it be Google that does this or someone else? It doesn't really matter. It is something to be aware of.

Just because the integration of all these disparate technologies and services hasn't happened doesn't mean it won't.