I am posting this to clear everybody up on the diference between some of these terms as it seems 90% of these forums aren't clear. There are two different things that are named here. Chipset names and Processor names. CHIPSETS: -CENTRINO (General name for intel's mobile chipsets) --Carmel (2003) --Sonoma (2005) --Napa (2006) (Used in previous rev. MBP) --Santa Rosa(2007) (Used in current rev. MBP) --Montevina(2008) (will be released this summer) --Capella(Early 2009) PROCESSORS: -Core Duo (General name for intel's 1st generations of dual core chips) --Yonah (Used in first rev MBP) -Core 2 Duo (General name for intel's 2nd generation chips (current)) --Merom (used in current rev MBP) --Penryn (to be used in nex-gen MBP) -Nehalem (General name for intel's next architecture) --Nehalem/Clarksfield (Processors that will succeed Penryn - late 2008). --Westmere (2009) -Sandy Bridge (General name to intel's next micro architecture - 2010) Alrighty. As you can see Processors are not the same thing as Chipsets. Therfore we are not going from 'Santa Rosa' to 'Penryn' in the next rev MBP. However, we are going from 'Merom' to 'Penryn' and staying with the same Santa Rosa chipset. The update after that, based on apple's previous history will be from 'Santa Rosa' to 'montevina' while staying with the 'Penryn' family of processors (later this year). Out of all of the updates, Nehalem and Sandy Bridge are the two biggest things to be excited for. They are much much much more powerful than current processors. Misconception #2: "Montevina will be SOOOO good." Umm, actually the only big diference between Montevina and Santarosa is the bus speed. 800 FSB/667 memory to 1066/800. Montevina also supports integrated WiMAX... but thats an internet access thing, not a speed increase. Just because it will be branded as Centrino 2 means nothing. Santa Rosa was branded as Centrino Pro... The upgrade to Penryn is actually a bigger step performance-wise than the upgrade to Montevina will be.