I think a lot of you are failing to read the part where if you clone Ids, it needs to be from an INACTIVE system. so many users posting "i cloned my ID and used it on two machines and now message delivery fails". Please read through original post and other posts in this thread to figure out why this is happening to you. even if you sign out of that system, before doing it. You probably have to wait a while for it's token to expire before booting up clone with it, or as far as apple system will be concerned, it still has two registered machines using those values and it'll trigger the block. This is why old unused systems are the ideal ones. It's just a shame my old macbook pro is a 1,1 model from 2006. DOH!
I have yet to call apple back with my generated values to see if they'll pass the bill or not. I probably will at some point because i think they will work, at least until they tighten it up and find rom was generated from non apple interface. I thought about fixing that too but the thing is, they already whitelisted my rom in past so i figure i'm getting off calling back with same rom that is already whitelisted and just act dumb on why the whitelist stopped working (i know why it did, 17 char serial with a 3,1 instead of 13, which i have fixed now).