The rename isn't official yet, but that's what I'm calling it from now on since Intel has finally launched there long awaited chip "Penryn", which is a hafnium based chip.
Which, by the way Gordon Moore has touted as "...the biggest change in transitor technology in 40 years". So this basically means that this technology will either be the biggest blunder for Intel or will vastly change the way the processors are made forever. I'll put my money on Gordon Moore though.
In a nutshell, this hafnium material supposedly allows a much more efficient power consumption and can allow devices to run cooler and therefore allow for smaller devices. This is really good news for handheld device makers like Apple, Nokia and not to mention all the "Go green" advocates. This is very bad news for competitor AMD, since this puts them way behind the curve and highly dependent on their quad-core "Barcelona" chip which hasn't been living up to the hype.
These horribly named chips, "Penryn" are expected to hit the mass market in the first quarter of 2008.
For more info, see Intel's article: http://www.intel.com/technology/architecture-silicon/45nm-core2/index.htm