Right now I'm multiplying the points by the transformation matrix in python-land, it works ok-ish for very simple primitives but it wont scale at all (it's kind of a hack to be honest). It would be great if the transformation is handled in the gpu by gl (especially when dealing with meshes and more data per primitive).
Said that, I have no idea if openmaya's view/renderer allows to go to that level, I've to take a look.