I’ve been on the jQuery Europe conference in Vienna and learned a lot of interesting stuff.
His talk was one of the most interesting ones and a must for everyone who is every going to build serious mobile applications or want to understand the foundations of responsive design. Here his talk recorded on another conferences: PPK on Viewports.
Also very interesting: The talk of Patrick Lauke, who did a lot of research on touch events. Here his slide deck.
And thanks to the guys from Gentics who made this event possbile!