Just picked up an NF310 and installed Arch linux. I'm on kernel 3.0.15 and samsung_laptop module is working fine. I have samsung-tools running and the controls it supports are working.
The missing piece for me are the brightness controls (fn+up, fn+down). Changing brightness with with the stubs in /sys/ works fine, but samsung-tools doesn't support brightness up/down (only backlight on/off). Is there any other utility out there serving this need, or should I just add the functionality to samsung-tools myself?