Acer released the Aspire S7 ultrabook with an impressive WQHD IPS display and Corning Gorilla Glass 2 protection back in December, but only now it reaches the US market.
http://www.notebookcheck.net/Acer-S7-ultrabooks-with-WQHD-IPS-displays-now-available-in-the-US.110566.0.html