For those of you who don't have a Comixology account, making one is easy. Here's a link to the registration page:
Once everything is set up, you can read comics on your computer, your tablet and your phone.
If you prefer a more traditional reading experience (and don't mind spending a few extra bucks) Arrival is still available in print through Lulu.com. It even has some extra goodies not found in the digital release. Here's a link:
Thank you all so much for your support!