Are you sure? Tried it, still the same result. [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] and XPC boot lion 32-bit or 64-bit according to the system identifier we set into them (smbios). For eg, if we set iMac5,1 Lion will boot 32-bit, whereas for iMac8,1 it will boot 64-bit. Actually that is handled by boot.efi and all the DP versions of Lion seems to follow this. But when Apple releases the final version they will likely boot 32-bit by default as SL.