Looks like he took a page out of my book with the rear ESC mount.
See:
http://www.rc-monster.com/forum/show...t=rear+mounted
Edit:
After looking at the G3R a bit more, I honestly don't think there is much improvement. Sure, some parts a little stiffer/stronger, but I don't think too many people actually had a problem with the original. Also, the rear ESC plate really only helps those who are going for a bolt on setup, most of us here which have more extensive mods will probably mount the ESC elsewhere, since we aren't using an HV or EVX. (I'm getting the Quark heatsink so I can mount my ESC opposite my motor).
BL Revo: CF G2R, LMT1940/7, 6S FP 30C Lipos, MMM, Hitec 5955TG
CRT .5: 7075 Ext Chassis, LMT1930/7, FP 25C 3S Lipos, MM