That will get the C2D and Nvidia 320m. In case anyone hasn't noticed, the same chipset and base internals are all similar on the 13" MBP, MB, MBA, Mac mini, and 21.5" (previously 20") iMac. Apple has used one concept and chipset across all of these Macs since Late 2008 13" Mac notebooks and early 2009 small factor Mac desktop updates. I fully expect the 21.5" iMac to NOT get an upgrade to Core i5, and the past is the future for Apple. It's all about saving money on economies of scale and on development and software integration costs. It's a lot easier to use one board/basic internal system across five Macs, and it's a lot cheaper to write one driver set, and it's a lot easier to integrate all of the changes into OS X, OpenCL, and h.264.