Version 3.3.2 has been released a few days ago. Please bump the version on portage. Thanks.
Ping!
lm_sensors is broken for some people using 3.4 kernel http://www.lm-sensors.org/wiki/FAQ/Chapter3#Mysensorshavestoppedworkinginkernel3.4
Guys, I added 3.3.3, could you please test if works for you?