@All,
Happy iMessage times indeed .....
To those of you who refrained from going down the cloning of MLB & ROM values route ... well done your patience has been rewarded - although i'm just as surprised as everyone else at the complete u-turn Apple seems to have done. We can only speculate as to why but i suspect that the wide spread use of cloned values has caused Apple so much trouble that they have decided to remove the enhanced ID verification checks.
To those who are still having issues - do not use cloned values, if you have a backup of your config.plist or /extra folder from when iMessage was working then go back to using those ID values and try again.
If all else fails then read the main guide and follow each step, ensure S/N, SmUUID MLB & ROM are correct and persistent, AppleID is validated .. etc
I'll be working on the new release / layout of the guide for the next day or so.
But please keep the feed back rolling-in.
Finally thanks everyone for the birthday wishes - much appreciated.
Cheers
Jay