Ok, I don't know why this wasn't included in 10.8, but it's still not in 10.8.1. Everyone knows how annoying it is for other people to have multiple threads for your phone number and your email. This is coming to the iPad in iOS 6, why didn't it come in ML already? Does anyone know if it's in 10.8.2? If not, do we have any idea when, or (god forbid) if, it is coming? It would make iMessage so much better!