Pretty cool TED talk about how smart materials can one day make our buildings behave more like biological systems in terms of dealing with the cold/hot/wind.

Nokia has [released the files](http://www.slashgear.com/nokia-releases-3d-case-printing-files-for-lumia-820-18265821) that allow anyone with a 3D printer to create protection cases for its Lumia 820 phone.

In my opinion, that's a really smart move:...