leads me to believe that this Kepler will have a hard time just matching PowerVR, let alone leap-frogging it.
LOL, right. Well I'm sure we will find out by CES 2014 (when real products will likely be announced and demoed based on Kepler.M), but I do think that you will be proven very wrong at that time. Personally I doubt that there will be an ultra low power GPU that can match Kepler.M until second half of 2014.