Day 1 of GDC is about the summits. The show floor isn't open yet. I mostly spent the day meeting with other game developers and the media and exchanging ideas.
I did a session on hard-core PC gaming. Here's some things I was involved in. For those of you who have ever attended a trade show, you know how hard it is to sit down and do a write up. If there's anything you particular you want me to look for, comment here.