Just wondering, comin from windows I know the sequence of the OS and the numbers, like from windows 7 to 8 and so on. And every number is completely new OS. Now apple seems to have very unusual numbering, all the OS I saw in the last years are cats names, thinking its a new OS completely revel its still the same OS 10 but small increments... So is every cat is really new OS? Or small increments? Also is OS 11 will be a "cat " as well or this will be totally redesign OS like win8?