I'm personally surprised that the Lenovo X1 Carbon hasn't gotten more notice: 14 inch screen, 1600x900, made of carbon fiber, beautiful body, less than 3 lbs, embedded 3G connectivity.
Question marks seem to be battery (I've heard numbers ranging from 3.5 hours to 10 hours) and price (I'd wager around $1200ish?).
Skepticism around the claims of improved sound.
The Samsung Series 9 (also 1600x900, but 13.3 inch screen) also looks solid. Any others out or on the horizon worth noting?