Interestingly enough, I signed up for the reminder on my personal account which mentions that I can tell everyone else in line to go "F" themselves and cut in line. I guess if you didn't sign up for the free reminder you may have to go through server crash city again.

From Comixology:

Everyone remembers their first comic book, and now – Marvel is giving you over 700 of them FOR FREE with Marvel #1! Head on over now to the special promotional page and sign up to get in on the action before Marvel #1 registration ends at 11:59pm ET on April 9th, 2013.

ComiXology and Marvel are pleased to announce the return of Marvel #1, a unique opportunity for fans to experience all of their favorite Marvel Super Heroes, and some new ones, by accessing over 700 #1 issues for free. These free comics can be read on the comiXology platform – available across iPhone, iPad, Android, Kindle Fire, Windows 8 the Web at comiXology.com – and the Marvel Comics app (iPhone, iPad, iPod Touch & Android devices) and online in the Marvel Digital Comics Shop, both powered by comiXology.