That would be the Raytheon version (snagged from the Danger Room).
This latter one is from the guys that did the BLEEX work at UC Berkeley but now as a spin off company (Berkeley Bionics). The stuff they show for the latter as far as mobility goes is pretty darned impressive. They just don't have the upper body segment at this point unlike the Raytheon guys.
Now we just need to armor these things and...
ahem. No personal hobby horses involved here. Move along, move along.