A little late in the day due to timezones, as I am currently in Upstate NY. I spent last weekend in New York City, going through the CSS Grid Specification line by line. We came up with some suggestions for improvements, spotted typos and also learned a great deal about the spec. I feel as if I know this spec incredibly well at this point but by chatting with people as we worked through it I learned a lot too. I'll be sure to put the things I discovered into writing and examples in the coming weeks!
Next for me is Fluent in San Francisco and a two-day CSS Layout workshop. If you will be at Fluent come and say hello, I am also doing a talk on Thursday during the regular conference and have a "meet the speaker" table right after my talk at lunch, so you will know where to find me!