I am of the opinion that, while biologically a clone is the same as its "parent", the soul would be different, and so one could and should baptise a clone, if it ever came to that.
I agree totally Mor. Not only that, I think many people understand cloning. People are the sum of their genetics and life experiences, so even if you clone yourself your clone will have a different set of experiences than you which will shape the personality of the clone. I think people forget the nature-nurture interaction when we discuss cloning.