There's no way I could cover this any better than it has been at the Horn Book itself, on Roger Sutton's blog, or over at Seven Impossible Things Before Breakfast.
If I drew one personal conclusion from the night it's that illustrators are probably better seen than heard. Most, not all, but a good deal of them. I'm also beginning to feel that few of them should be allowed to add words to their own illustrations; way too many titles have I seen where perfectly delightful illustrators were allowed to do picture books that landed like flat, dusty, day-old grape soda on the tongue. No names. You can probably name a few yourself.