The people who disagree with these kinds of experiments because they think "humans are playing God" are the same people who hold back humanity. These are the people who shut the world up in the Middle Ages. I'm not even considering ethical issues at this point yet (which I agree are many and which I agree with).
Let's assume for a moment that God exists and that he mostly cares about our acts. If God gave us the power to reproduce ourselves, and gave us the power to think and solve problems much better than the average animal, he would expect us to one day come up with this kind of reproduction. It's a sign of human advancement as a race. If you disagree with this, then stop using the computers with which you're reading this because God for sure didn't make those.
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Ethically, however, there are too many issues to reproduce this science concerning human health and the health of the cloned beings derived from the experiments. In countries where ethical laws are non-existent or hardly enforced, it's not hard to imagine a fringe group of scientists already trying to overcome these problems. Assume now that this is not the case and that the ethical barriers exist everywhere. Then I would only agree with these experiments when there's scientific proof that the experiments would produce a healthy clone.
Now, many would argue that that would be extremely difficult or not possible at all without having some trial and error. I honestly don't know the methods in the minds of the researchers behind this, but the poster claiming to be one could post on that issue. If that were true, the fringe scientists mentioned in the earlier paragraph would come back into play and would one day provide a moderately safe method of cloning through potentially unethical experiments. The methods with which they'd do this would be very wrong, however there's nothing anyone could do about it.
So, in the end of the day, this will happen, like it or not.
