The 311 was ok but the Atom CPU is not capable of HD acceleration without GPU assistance whereas the ULV SU7300 is. I also did not like the touchpad because there was too much lag in it which really is night and day compared to the Synaptics one used in the 13z, it's also almost twice the size.
Oh and battery life was around 5 hours.
Oh and battery life was around 5 hours.