Forget about Penryn chips, they not nothing special from what i read. 20% increase? I have to agree with the people that state that we wont really see a difference in performance. Its all about Montevina chips! They gona run on ddr3 and be better for gaming aswell for all people who question if gaming is good on a MBP. http://en.wikipedia.org/wiki/Centrino These chips are to be released in March/April but the big question is WHEN WILL MBP HAVE THEM? Personally i reckon its a great business tactic to release the penryns chips now and everyone invests in one then release the Montevina and thats a MUST to have considering the major upgrade. Montevina is also gona have WiiMax, some sort of new wifi. I hope MBP come out with these chips by April/May...go go!