Workbook. Dell's XPS 13 is a 13 inch ultrabook in an 11 inch casing. This makes it slim, light and overall very portable. We exhaustively tested whether the screen, battery life and power are in line with that.
http://www.notebookcheck.net/Review-Dell-XPS-13-Ultrabook-Late-2012.87006.0.html
Apparently Dell just announced a 1080p option, due to he released at the end of the month. Looks like you may be reviewing the XPS 13 for a third time!
Please, review the newly released Dell XPS 13 developer edition (the one with the refreshed 72% NTSC full-hd screen and Ubuntu 12.04 LTS)