Out of all of the launched Ultrabooks, we like ASUS' Zenbook UX21 and UX31 the best. While ASUS doesn't have any major Ultrabook announcements at CES, it is updating the UX series to include both pink and rose gold features.

All of the UX ultrabooks are now shipping with an Elan touchpad (not sure how that compares to what we originally reviewed, will try to find out this week) and updated drivers to improve resume/standby times. 

Update: ASUS switched touchpads to an Elan made model late last year. While some early owners received the previous version, if they complain to ASUS they'll apparently be able to swap it in for an updated model. All of the UX series shipping since late November have the new Elan touchpad that apparently addresses some (all?) of the issues in our original review. I'll give it a try and provide an update as soon as I have some extended hands on experience.