Hello, jazzer, you wrote: J> Who that thinks? J> it is interesting to esteem judgements of experts on UI and usability. I the artificial welder, but had a look on I will bake. The idea seemed to me enough complete and being in the spirit of modern lines of design UI. To represent three-dimensional objects on the plane screen which it is possible to twirl every which way, was enough foolish idea and passage lying the friend on other to planes looks natural. On the other hand, it only which does not guarantee beauty, result. Anyway it is required to adjust recommendations to specific requirements of the project. But so always was with any . The lack of the reasonable initiative from designers leads to appearance of hundreds applications similar, as like as two peas. So already happened, when after appearance Twitter Bootstrap there were hundreds nothing different from each other. Like anybody of it did not die, means and from material design does not die.