what are you talking about? ...removing mono...? mono is one of unity's biggest strengths. if they get rid of mono then they can say goodbye to all their non-hardcore-programmer customers. which for sure are quite a lot. it would be totally against the philosophy (democratize game development, take the pain out of game development,...) they state everywhere on their website. i am sure that they won't get rid of mono. maybe there will be a non-mono iphone version but this also won't be very attractive anymore for many people.