These two are from movieguy711 on twitter:
Video #1
Video #2
LoganLerman.com.br has a collection of photos here.
Here is a higher quality video:
And then sictransitsuzy posted a description of what it was like there – they gave away free copies of book #1 for signing!!! – and you can read it here. There’s also some good pictures.
crazy_singer did the same thing, which you can find here :D
(There are pictures of the signatures!!! Nice note there Logan :))
And then we got a little article with some quotes here. I’m sure the quotes can be found on a dozen other articles, but yeah….
Got some more pictures from xstitchedxx (that she found on wired) that can be seen here.
And finally, humaax3 posted some pictures here.
Man, this is the sort of thing that I really would’ve liked to have gone to. I’m such a nerd for events like this :( And getting to meet the actors would have been SO AWESOME.