I don't understand, there are already lots of alt coins.  Litecoin is almost the same thing as bitcoin, but with a different algo and faster confirmation time.  Do you mean just a straight up bitcoin clone?  It doesnt matter, there are already too many people invested in bitcoins.  I think that you can look at it, at least for now, that bitcoin is gold, litecoin is silver, and everything else is, idk,, corn or something.