According to the chaps at the Eclipse Developer's Journal (EDJ), Intel is planning a six-core microprocessor, which will go by the Dunnington moniker.
The six-core beast will be succeeded by the even meatier, Nehalem micro-architecture, which will support greater than eight cores. The work regarding the Dunnington project is still under wraps, but our friends at EDJ insist Intel has already put together a die, the size of a postage stamp, with three dual-core 45nm Penryn chips on it sharing a 16MB L3 cache. Allegedly, we'll see the Dunnington in either Q2 or Q3, this year—we'll be sure to keep you posted on any developments. [EDJ via The Inquirer]