Below is an overview of all the presentations accompanied by Twitter account of the speaker (use this Twitter list to follow them all).
You might also be interested in the Fronteers 2014 recap written by Rik Schennink.
Nowadays we not only develop for one device. We can not rely on a solution for one type of screen. Desktop computers, tablets of various sizes and smartphones in all kinds of flavours have different screen sizes. How are we able to develop for all these devices, and what will be the optimal workflow?