I purchased a MacBook on 02/29/08 from the Apple Store. I've read that the "new & improved" MacBooks have improved processors and larger hard drives among other things. I know that my MacBook falls under the specs of the "new & improved", however, I'm not sure if my MacBook has the new "Penryn" technology that I've been reading about as a part of the "new & improved". It does has the Intel Core 2 Duo processor...but, how can I find out about the Penryn? Thanks!