The first - Nehalem is the collective name for the generation of chips after the one I am blabbering on about, the gen with Whitefield as the lead.
Since Merom was the lead of this generation, keen observers will take this as a hint about the structural changes at Intel.
The other minor error is I forgot to put in Woodcrest which is the Xeon of the family. The pre-Nehalem, post P4 cores are Merom in mobile, Conroe in desktop and Woodcrest in Xeon. All clear now? ยต