What's the rush? Cloning of mammals is still an immature technology. A high percentage of cloning attempts fail. A significant percentage of clones are born with birth defects. Those that are apparently born normal may well face as yet poorly understood long term affects, such as the apparent premature aging seen in Dolly.

The PETA folks would probably argue that doing such experiments on animals is cruel. In this case, they may be right. Regardless, it does definitely seem wrong to me to attempt human experiments until the technology is much better developed.

To clarify, I'm talking about attempts to clone entire human beings. Those experiments that are attempting to grow organs are different, IMO.