Shawn Blanc picked up a new (Penryn) MacBook Pro a few days after I did, and has written (another) exhaustive review. It’s great! His perspective is from a 12-inch PowerBook owner, so he touches on things like the keyboard backlighting, magsafe power adapter and higher-density screen. He also covers the new features, like the multi-touch trackpad. I learned a thing or two; about the “speed tap” Caps Lock and “safe” sleep mode (which I have now disabled, thank you, Shawn).
If you’re still using an older PowerBook or first-generation MacBook Pro, and are considering upgrading to the new Penryn model, this is a must-read.