Apple's upcoming iMac and Mac mini refreshes will both use NVIDIA's GeForce 9400M or a variant of it when they launch, according to leaks referenced and investigated by AppleInsider. Mac OS X extension files for SMC and ACPI power management included with the 10.5.6 update make references to unreleased "iMac9,1" and "Macmini3,1" models that are specifically tied to using MCP79, NVIDIA's codename
