IDF 2008: Nehalem for Q3 .... 2009!

If Intel unveiled a lot of details about its future CPU generation, aka Nehalem, and while several samples are already been used for test and evaluation by OEMs, the founder does not plan to launch mass-production and consumer-oriented versions before mid-2009 at the earliest. So, do not wait for any desktop or notebook to be powered by a Nehalem before this period.
Of course, Intel has no reason to push earlier this new CPU as AMD can currently not compete, while NVidia might be in real trouble with the defective GPU issue. So Intel is probably going to slow down CPU revision, getting more cash from current generation models, and keep developing new CPUs and engraving technologies for post-Nehalem era. In addition, Intel might also try to align the released of Larrabee with the Nehalem, and a delay in the first technology might explain why the Nehalem was push back to mid-2009.
Last but not least for Mac users, the Nehalem-based Xeon should be introduced by the end of the year, giving Apple enough time and perfect timing for updating the Mac Pro models.