@ NokiaRocks
Start xterminal and enter this

root
modprobe bq27x00_battery
cat /sys/class/power_supply/bq27200-0/temp

Copied this from http://wiki.maemo.org/Kernel_Power (Section Battery)

Edit:
I placed a "Desktop Command Execution Widget" with this on my desktop to constantly monitor the battery temp. There is no exact CPU temp command I think, so I use this to measure the temp since the battery is near the CPU. The CPU temp must be much higher.

Edit2:
What's the difference between v34 and v36?