1) Summer's Crossing, a novella that takes place, I believe, between The Iron Queen and The Iron Knight, (which I saw on amazon for $2.99) is available for free from Harlequin Teen until June 2012 on their site.
2) There's a smokin' fun behind-the-scenes video about the photo shoot for the Iron Knight cover:
Who's loving this series? Who's hating it? I'm curious. I've got the first two, but I haven't dived in yet. Share your views in the comments.