When I modded a WRT54G-TM and a WRT54GL as a hobby project several months ago to add a heatsink, fan and fan speed control, I noticed that the BCM chips in the devices showed as follows: GL --- BCM5352EKPB? RN08... TM --- BCM5352EKPBG RN07... I wrote down all this info at the time but I seem to have misplaced that piece of paper. So, from memory I'm not sure whether the GL version had a 'G' on the end of the BCM string. I'm certain of the RN08 and RN07 differences, however. I confirmed this for the TM by opening up an unmodded unit that I still have (the CFE's already been changed, however). Since the GL now has a heatsink on the BCM, I can't look at it. Anyway, that seemed to match the info that said the GL was a v0.8 (I.E. RN08 or Release Number 8, I thought) and the TM was a v0.7. Maybe those differences on the BCM's were just a coincidence. I'd be curious if anyone with a stock TM (not flashed with a different CFE) could telnet into the router and retrieve it's cpuinfo string. If anyone's interested, attached are pictures of my mods. Picture 1 - Holes cut in the top for the fan and the side to direct airflow over the BCM heatsink. Picture 2 - Heatsink on BCM. Picture 3 - Potentiometer and fan wiring. Picture 4 - Completed mod with fan speed knob. This TM is running at 250 MHz.