A few months ago, Asus launched their UX series of Ultrabooks with the UX21 and UX31. They were 12.1" and 13.1" ultrabooks, but they really didn't do all too well. Performance was lackluster, and a lot of people had problems with the keyboard and trackpad. Hopefully all of those issues will be addressed with Asus's Ivy Bridge refresh of the series. The UX21A and UX31A will have the same physicals features, but should pack more of a punch now that they'll include these 17W TDP Ivy Bridge processors:
Other specifications include either 2GB or 4GB of 1600MHz DDR3L 1.35V RAM, storage of up to a rumored 512GB SATA III SSD (only a 256GB SATA III SSD has been confirmed), integrated Intel Wireless Display (WiDi), Bluetooh 4.0, 802.11N wireless, two USB 3.0 ports, SDXC memory card reader, and a micro-HDMI port. The screens are quite amazing, as well. Both the 12.1" and 13.1" version will be able to upgrade to a 1920x1080 (1080p) IPS display. It doesn't quite compete with Apple's 9.7" 2048×1536 IPS Retina display, but it will surely do the job.The release date has not yet been announced, but I'd expect the ultrabooks to be released around the same time that Intel launches Ivy Bridge.