Mac OS X Snow Leopard
I just upgraded all my mac at home and at work… everything runs just fine, and without any problem during the upgrade from Mac OS X Leopard to Snow Leopard. I really love the performance of snow leopard, just everything looks faster than in leopard. I really hope VMware gets Fusion running under Snow Leopard with the 64-bit kernel (btw. Fusion runs fine with the 32bit kernel.
You can boot your mac os x snow leopard with the 64bit kernel, by holding down the key “6″ and “4″.