Lenovo-IdeaPad-U300s-ultrabookMonths ago you probably heard about the “Ultrabook” initiative from Intel.  Phase One of this initiative appears to be nearly complete as several OEMs have launched new machines. Toshiba, Acer, ASUS and Lenovo have all introduced machines for the 2011 holiday season.  Phase II of the initiative will commence with the launch of the Intel “Ivy Bridge” processors in the first half of 2012.

Several of the gadget and laptop review sites have received evaluation units and written about the pros and cons to the fall crop of Ultrabooks.  How do these machines match-up to the Apple MacBook Air?  Check out the reviews and see for yourself. 

Acer S3

ASUS Zenbook

Lenovo IdeaPad U300s

Toshiba Portege Z830

Samsung Series 7 Chronos - not exactly an ultrabook, but interesting