Acer has just unveiled new models in its Aspire S3 and S7 product lines at Computex 2013. The revised ultrabook series feature design changes as well as Intel's new processor generation Haswell and high-resolution touch screens.
http://www.notebookcheck.net/Acer-Unveils-Aspire-S3-and-Aspire-S7-with-Intel-Haswell.93531.0.html