Next Mac OS Code Name

What will the code name be for the next version of the Mac OS? Sticking with the feline theme, Lion and Cougar seem like logical choices. Lion especially seems logical since it is in the same genus (panthera) as Jaguar, Leopard, and Tiger. However, once you choose Lion can you really choose Cougar as the next name? That seems like a downgrade to me. Once Lion is chosen, I would imagine the Apple geniuses will have to move on to another species or skip that theme altogether for a more Ubuntu-like code name. Please cast your vote. If your code name is not listed, leave a comment and I will add it to the poll. Whether the next code name for the Mac OS will be Lion or not, it will assuredly reign over its Microsoft rival.