Well, first of all I'd like to advise pay some attention to the command
> enlightenment_remote -h
It provide a bit more 'extended' configuration capabilities then GUI in EC (E Config Panel). Right now you can switch 'engines' from 'software' to 'xrender' BUT you won't receive any benefits from it (only penalties, function is just for the developers). The 'heart' of E-DR17 is 'evas' - the canvas library. And you already have full OpenGL support compilled in as an engine. You can install 'Expedite' (complete test suite for E), open your terminal and type:
> expedite
It'll show you a brief usage summary and give you an idea which engines are already compled into.
Right now the integration with OpenGL (and load of GPU instead of CPU for all windows manipulations if the acceleration exist) is a work in progress. You're welcome to install Mac OS X if you need full-time OpenGL output right now
.