Intel Nehalem chips have been slated to go into Mac Pro type workstations since the codename was revealed in Intel's roadmap two years ago. Now those chips, and by extension, those workstations are a lot closer to fruition.
That's because Intel has officially revealed the branding for the next wave of high end processors according to C|Net. Next stop product launchwhich is looking like late 2008 (unless you are MaximumPC)
Intel's description of i7:
Dynamic scalability