After having found the product sheets linked above I believe that the "1.7Gdmaps processor" is the MPC5121e MobileGT processor, but I still wonder about that strange naming on the part of THTF/LimePC. If you sum up the DMIPS figures of the e300 core, the AXE unit and the PowerVR core you get something like 1700 DMIPS, so there seems to be a connection ("1.7Gdmaps" being a failed variant of "1.7k DMIPS" maybe ;-)
