The Register are reporting that Intels quad-core processor, "Kentsfield", will be released ahead of the original Q2 release date. Originally Intel had given a mid-2007 release date for their first quad-core offerings, but with AMDs quad-CPUs due out in 2007 Q1 it looks as though the release date is being rushed forward.
With AMD slowly making ground on Intel it looks as though the company have had to take notice and change their release dates around. It also means that Intel will be releasing their next generation CPU at the same time that Microsoft releases their next operating system, Windows Vista. The new release of a new operating system is a major drive for computer sales and both Intel and AMD will be looking to be part of that hardware rush.