I just got my new Macbook from work, and am trying out the keyboard, music, etc. It is taking some time to get used to, but my first impression so far is this is an amazingly impressive machine. It reminds me of my first Powerbook 12 back in 2004, but light-years ahead in terms of technology. I never thought a computer could be this light, small, and powerful.
The screen is absolutely stunning. I can't get over how beautiful the entire package this is. The trackpad already feels great, and it definitely adds some "depth" to OS X. I can see them leveraging the taptic feedback so much more.
I can't wait to take this out for a spin across the country as the may reason I got it was for the portability. Running Creative Cloud seems to be going really smoothly as well. Just stunning.