Great talk on Microsoft's 'Metro' styling (though they aren't allowed to call it that anymore).
Particularly interesting is the part about how 'digital natives' - folks who've grown up with the Internet and digital being everywhere don't need skeumorphs. E.g. a 10 year old *now* doesn't need or even understand a phone app with an oldschool 'dial' for numbers. If you give it to a great-granny though, it suddenly works.