We are shipping out 13th Age pre-orders soon (more information), and we’ve sent out an email just to check everyone’s address.
We are also offering GenCon collection in this email. If you chose this option, you can collect your book at GenCon, and we will refund your shipping there. We think that if you live in the US, you will get your book before GenCon in any case, though we can’t guarantee it.
We are discussing the logistics of allowing anyone to order anything for collection at GenCon, but there are lots of technical and logistical issues to iron out first.