At an event in New York, Asus CEO revealed two new Ultrabooks from Asus called UX21 ans UX31. They will be mentioned as Zenbooks by Asus. The 11.6-inch UX21 with 128GB SSD will cost $999, while the 13.3-inch UX31 with a Core i5-2557M processor will cost $1,099. This is $100 more than the comparably spec’d Acer Aspire S3. You can find the detailed specs in the table below. These Zenbooks will be on sale from Oct-12th.