Latest processor revamp since Pentium Pro, Intel Core i7 (codename Nehalem) is the successor to Core 2 architecture. All the newly available chips have 4 cores inside.
The Intel inside logo for Core i7 comes in blue and gray so I am not sure the purpose of 2 colors here, maybe one for the Extreme gamer chips.
There are tonnes of reviews and performance tests already showcased on websites all over. And some vendors already shipping products based on Core i7. I am not going to waste my blog space so I am providing the links here.
News
Tom’s Hardware http://www.tomshardware.com/news/intel-nehalem-corei7,6092.html
Wikipedia http://en.wikipedia.org/wiki/Intel_i7
Intel’s blog http://blogs.intel.com/technology/2008/08/getting_to_the_core_intels_new.php
Reviews
Techgage http://techgage.com/article/intel_core_i7_performance_preview/
Computer Shopper http://computershopper.com/feature/intel-s-core-i7-debuts-systems-cpus-and-motherboards-reviewed
Custom PC http://www.custompc.co.uk/features/605109/intel-core-i7—all-you-need-to-know.html
Techspot http://www.techspot.com/review/124-intel-core-i7-920-940-965/
Products
Alienware http://www.engadget.com/2008/11/17/alienware-gets-in-the-core-i7-game-with-area-51-x-58-desktop/
Gateway http://www.engadget.com/2008/11/17/gateway-throws-core-i7-cpus-into-two-new-fx6800-gaming-desktops/
Dell http://www.engadget.com/2008/11/17/dells-intel-core-i7-packing-xps-studio-and-xps-730x-desktops-on/
Now, how I wish the market never crash and everyone got spare cash for this upgrade

