Lion is 64-bit only. Although the early minis have socketed CPUs, so you could theoretically replace it with a Core 2: http://www.xlr8yourmac.com/systems/mac_mi

Lion is 64-bit only. Although the early minis have socketed CPUs, so you could theoretically replace it with a Core 2: http://www.xlr8yourmac.com/systems/mac_mini_core_2_duo_swaps.html http://www.xlr8yourmac.com/systems/mac_mini_core_2_duo_swaps...