Surprisingly enough we did get a desktop processor based iMac this time around. The 3.06 GHz Core 2 Duo E7600 shows up as the stock processor for the 21.5" line and base 27" model. There's also the option to upgrade to the 3.33 GHz Core 2 Duo E8600 with 6 MB of L2 cache as well. The E8600 upgrade option has very marginal benefits in my opinion compared to a 65W Core 2 Quad S, the current P55 platform, or the soon to be H57 platform for Nehalem/Westemere. For all intents and purposes LGA 775 is a dead socket walking. Core 2 Quad was already made irrelevant with the release of Bloomfield back in November of 2008. In addition there is Lynnfield from September 2009 for mainstream, cooler Nehalem with optimized Turbo Boost. Clarkdale comes out in January 2010 with 2 core, 4 thread Westmere desktop processors to replace the $100-300 range of highly clocked Core 2 Duo processors that remain. There are still faint glimmers left though. The 65W Core 2 Quad S, while superseded by Lynnfield and Clarkdale, is a cool drop-in processor for the 21.5" models that won't require any sort of redesign. There's also one more processor that keeps turning up under the Core 2 Duo line. I made mention of the 3.5 GHz 65W; 6 MB of L2 cache E8700 some time ago. It was launched earlier this year but I haven't heard of anyone managing to get one until now. The E8700 should drop its E8600 predecessor down in price from its current US$266 per 1,000. While it might not be a flashy new Clarkdale, the Core 2 platform does need to be taken into account. nVidia doesn't offer any IGP support for Nehalem/Westmere platforms. In conclusion, I suspect you're going to see Core 2 hang around for another revision with the E8600, E8700, and a possible 65W Core 2 Quad option. Alongside that you'll see a 32 shader ION2 as the platform controller. Lynnfield prices are expected to go down with the release of the Bloomfield Core i7 930 in Q1 2010. The Core i5 750 is more than likely going to trickle down to the current US$1,699 base 27" iMac in the next revision.