Now it's my main dev machine: its very little weight enables me to carry it wherever I go, the battery lasts 18h (18 HOURS, CRAZY!) if I read only PDFs, the 2gb of ram and the dual core are just perfect (but not tempting about running virtual machines on it), and with the SSD it performs better than more powerful machines with HDs. Oh, and I just love the 12" format.
(Of course I have thrown away ChromeOS, now I run elementary OS)