Comment by jedieaston

I'm curious if they have a farm of iPhones somewhere to host this off of. They are sending the iMessages from phone numbers -- not email addresses, which means they didn't just get a bunch of Mac Minis and do it the (probably easier) way.

Jailbroken iPhones where you can automate the UI and (maybe?) access any private Messaging API Apple left laying around would make this scalable though.