There has been confusion about this, I have seen conflicting things. On Apple's website it says the Mini "ships with leopard" - but does that mean they are being cheap and selling their new-old-stock minis with a crummy leopard upgrade disc in the box? When I navigate to the Mini section on Apple's website, I see 10.4 listed as the OS and "ships with leopard". Then when I click the "buy" button, i am taken to another page where it says 10.5 is the OS. Is there any way to find out? I won't be buying one if it is the upgrade disc... I will just wait until the Mini replacement comes out.