This issue is a little late going out due to my current timezone, as I'm in Seattle for An Event Apart. I've just come offstage after presenting a talk all about how to approach developing using new CSS such as grid in a way that still supports older browsers. This is very much going to be my theme this year I think. The slides for that talk are here.
I am next heading to San Francisco for Smashing Conf. Do come to say hello if you are at any of these events.